diff --git a/src/Symfony/Component/Validator/Context/ExecutionContext.php b/src/Symfony/Component/Validator/Context/ExecutionContext.php
index 542ea336585f..3bd423fb6590 100644
--- a/src/Symfony/Component/Validator/Context/ExecutionContext.php
+++ b/src/Symfony/Component/Validator/Context/ExecutionContext.php
@@ -18,7 +18,6 @@
 use Symfony\Component\Validator\Exception\BadMethodCallException;
 use Symfony\Component\Validator\Mapping\MetadataInterface;
 use Symfony\Component\Validator\Mapping\PropertyMetadataInterface;
-use Symfony\Component\Validator\ObjectInitializerInterface;
 use Symfony\Component\Validator\Util\PropertyPath;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 use Symfony\Component\Validator\Violation\ConstraintViolationBuilder;
@@ -147,7 +146,7 @@ public function __construct(ValidatorInterface $validator, $root, TranslatorInte
     /**
      * {@inheritdoc}
      */
-    public function setNode($value, $object, MetadataInterface $metadata, $propertyPath)
+    public function setNode($value, $object, MetadataInterface $metadata = null, $propertyPath)
     {
         $this->value = $value;
         $this->object = $object;
@@ -370,14 +369,7 @@ public function isConstraintValidated($cacheKey, $constraintHash)
     }
 
     /**
-     * Marks that an object was initialized.
-     *
-     * @param string $cacheKey The hash of the object
-     *
-     * @internal Used by the validator engine. Should not be called by user
-     *           code.
-     *
-     * @see ObjectInitializerInterface
+     * {@inheritdoc}
      */
     public function markObjectAsInitialized($cacheKey)
     {
@@ -385,16 +377,7 @@ public function markObjectAsInitialized($cacheKey)
     }
 
     /**
-     * Returns whether an object was initialized.
-     *
-     * @param string $cacheKey The hash of the object
-     *
-     * @return bool Whether the object was already initialized
-     *
-     * @internal Used by the validator engine. Should not be called by user
-     *           code.
-     *
-     * @see ObjectInitializerInterface
+     * {@inheritdoc}
      */
     public function isObjectInitialized($cacheKey)
     {
diff --git a/src/Symfony/Component/Validator/Context/ExecutionContextInterface.php b/src/Symfony/Component/Validator/Context/ExecutionContextInterface.php
index 37518fdf7a68..d2527f4694ee 100644
--- a/src/Symfony/Component/Validator/Context/ExecutionContextInterface.php
+++ b/src/Symfony/Component/Validator/Context/ExecutionContextInterface.php
@@ -116,15 +116,15 @@ public function getObject();
     /**
      * Sets the currently validated value.
      *
-     * @param mixed             $value        The validated value
-     * @param object|null       $object       The currently validated object
-     * @param MetadataInterface $metadata     The validation metadata
-     * @param string            $propertyPath The property path to the current value
+     * @param mixed                  $value        The validated value
+     * @param object|null            $object       The currently validated object
+     * @param MetadataInterface|null $metadata     The validation metadata
+     * @param string                 $propertyPath The property path to the current value
      *
      * @internal Used by the validator engine. Should not be called by user
      *           code.
      */
-    public function setNode($value, $object, MetadataInterface $metadata, $propertyPath);
+    public function setNode($value, $object, MetadataInterface $metadata = null, $propertyPath);
 
     /**
      * Sets the currently validated group.
@@ -186,4 +186,30 @@ public function markConstraintAsValidated($cacheKey, $constraintHash);
      *           code.
      */
     public function isConstraintValidated($cacheKey, $constraintHash);
+
+    /**
+     * Marks that an object was initialized.
+     *
+     * @param string $cacheKey The hash of the object
+     *
+     * @internal Used by the validator engine. Should not be called by user
+     *           code.
+     *
+     * @see ObjectInitializerInterface
+     */
+    public function markObjectAsInitialized($cacheKey);
+
+    /**
+     * Returns whether an object was initialized.
+     *
+     * @param string $cacheKey The hash of the object
+     *
+     * @return bool Whether the object was already initialized
+     *
+     * @internal Used by the validator engine. Should not be called by user
+     *           code.
+     *
+     * @see ObjectInitializerInterface
+     */
+    public function isObjectInitialized($cacheKey);
 }
diff --git a/src/Symfony/Component/Validator/Tests/Validator/Abstract2Dot5ApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/Abstract2Dot5ApiTest.php
index 02fefda5f042..e920da9a7219 100644
--- a/src/Symfony/Component/Validator/Tests/Validator/Abstract2Dot5ApiTest.php
+++ b/src/Symfony/Component/Validator/Tests/Validator/Abstract2Dot5ApiTest.php
@@ -193,13 +193,26 @@ public function testValidateInContext()
         $entity = new Entity();
         $entity->reference = new Reference();
 
-        $callback1 = function ($value, ExecutionContextInterface $context) {
+        $callback1 = function ($value, ExecutionContextInterface $context) use ($test) {
+            $previousValue = $context->getValue();
+            $previousObject = $context->getObject();
+            $previousMetadata = $context->getMetadata();
+            $previousPath = $context->getPropertyPath();
+            $previousGroup = $context->getGroup();
+
             $context
                 ->getValidator()
                 ->inContext($context)
                 ->atPath('subpath')
                 ->validate($value->reference)
             ;
+
+            // context changes shouldn't leak out of the validate() call
+            $test->assertSame($previousValue, $context->getValue());
+            $test->assertSame($previousObject, $context->getObject());
+            $test->assertSame($previousMetadata, $context->getMetadata());
+            $test->assertSame($previousPath, $context->getPropertyPath());
+            $test->assertSame($previousGroup, $context->getGroup());
         };
 
         $callback2 = function ($value, ExecutionContextInterface $context) use ($test, $entity) {
@@ -244,13 +257,26 @@ public function testValidateArrayInContext()
         $entity = new Entity();
         $entity->reference = new Reference();
 
-        $callback1 = function ($value, ExecutionContextInterface $context) {
+        $callback1 = function ($value, ExecutionContextInterface $context) use ($test) {
+            $previousValue = $context->getValue();
+            $previousObject = $context->getObject();
+            $previousMetadata = $context->getMetadata();
+            $previousPath = $context->getPropertyPath();
+            $previousGroup = $context->getGroup();
+
             $context
                 ->getValidator()
                 ->inContext($context)
                 ->atPath('subpath')
                 ->validate(array('key' => $value->reference))
             ;
+
+            // context changes shouldn't leak out of the validate() call
+            $test->assertSame($previousValue, $context->getValue());
+            $test->assertSame($previousObject, $context->getObject());
+            $test->assertSame($previousMetadata, $context->getMetadata());
+            $test->assertSame($previousPath, $context->getPropertyPath());
+            $test->assertSame($previousGroup, $context->getGroup());
         };
 
         $callback2 = function ($value, ExecutionContextInterface $context) use ($test, $entity) {
diff --git a/src/Symfony/Component/Validator/Tests/Validator/AbstractLegacyApiTest.php b/src/Symfony/Component/Validator/Tests/Validator/AbstractLegacyApiTest.php
index 56e94313bed3..53b935f5c373 100644
--- a/src/Symfony/Component/Validator/Tests/Validator/AbstractLegacyApiTest.php
+++ b/src/Symfony/Component/Validator/Tests/Validator/AbstractLegacyApiTest.php
@@ -120,8 +120,19 @@ public function testValidateInContext()
         $entity = new Entity();
         $entity->reference = new Reference();
 
-        $callback1 = function ($value, ExecutionContextInterface $context) {
+        $callback1 = function ($value, ExecutionContextInterface $context) use ($test) {
+            $previousValue = $context->getValue();
+            $previousMetadata = $context->getMetadata();
+            $previousPath = $context->getPropertyPath();
+            $previousGroup = $context->getGroup();
+
             $context->validate($value->reference, 'subpath');
+
+            // context changes shouldn't leak out of the validate() call
+            $test->assertSame($previousValue, $context->getValue());
+            $test->assertSame($previousMetadata, $context->getMetadata());
+            $test->assertSame($previousPath, $context->getPropertyPath());
+            $test->assertSame($previousGroup, $context->getGroup());
         };
 
         $callback2 = function ($value, ExecutionContextInterface $context) use ($test, $entity) {
@@ -167,8 +178,19 @@ public function testValidateArrayInContext()
         $entity = new Entity();
         $entity->reference = new Reference();
 
-        $callback1 = function ($value, ExecutionContextInterface $context) {
+        $callback1 = function ($value, ExecutionContextInterface $context) use ($test) {
+            $previousValue = $context->getValue();
+            $previousMetadata = $context->getMetadata();
+            $previousPath = $context->getPropertyPath();
+            $previousGroup = $context->getGroup();
+
             $context->validate(array('key' => $value->reference), 'subpath');
+
+            // context changes shouldn't leak out of the validate() call
+            $test->assertSame($previousValue, $context->getValue());
+            $test->assertSame($previousMetadata, $context->getMetadata());
+            $test->assertSame($previousPath, $context->getPropertyPath());
+            $test->assertSame($previousGroup, $context->getGroup());
         };
 
         $callback2 = function ($value, ExecutionContextInterface $context) use ($test, $entity) {
diff --git a/src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php b/src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php
index 3738dab069a0..581b2f17f50f 100644
--- a/src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php
+++ b/src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php
@@ -96,6 +96,12 @@ public function validate($value, $constraints = null, $groups = null)
     {
         $groups = $groups ? $this->normalizeGroups($groups) : $this->defaultGroups;
 
+        $previousValue = $this->context->getValue();
+        $previousObject = $this->context->getObject();
+        $previousMetadata = $this->context->getMetadata();
+        $previousPath = $this->context->getPropertyPath();
+        $previousGroup = $this->context->getGroup();
+
         // If explicit constraints are passed, validate the value against
         // those constraints
         if (null !== $constraints) {
@@ -120,6 +126,9 @@ public function validate($value, $constraints = null, $groups = null)
                 $this->context
             );
 
+            $this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
+            $this->context->setGroup($previousGroup);
+
             return $this;
         }
 
@@ -134,6 +143,9 @@ public function validate($value, $constraints = null, $groups = null)
                 $this->context
             );
 
+            $this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
+            $this->context->setGroup($previousGroup);
+
             return $this;
         }
 
@@ -148,6 +160,9 @@ public function validate($value, $constraints = null, $groups = null)
                 $this->context
             );
 
+            $this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
+            $this->context->setGroup($previousGroup);
+
             return $this;
         }
 
@@ -180,6 +195,12 @@ public function validateProperty($object, $propertyName, $groups = null)
         $groups = $groups ? $this->normalizeGroups($groups) : $this->defaultGroups;
         $cacheKey = spl_object_hash($object);
 
+        $previousValue = $this->context->getValue();
+        $previousObject = $this->context->getObject();
+        $previousMetadata = $this->context->getMetadata();
+        $previousPath = $this->context->getPropertyPath();
+        $previousGroup = $this->context->getGroup();
+
         foreach ($propertyMetadatas as $propertyMetadata) {
             $propertyValue = $propertyMetadata->getPropertyValue($object);
 
@@ -196,6 +217,9 @@ public function validateProperty($object, $propertyName, $groups = null)
             );
         }
 
+        $this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
+        $this->context->setGroup($previousGroup);
+
         return $this;
     }
 
@@ -221,6 +245,12 @@ public function validatePropertyValue($object, $propertyName, $value, $groups =
         $groups = $groups ? $this->normalizeGroups($groups) : $this->defaultGroups;
         $cacheKey = spl_object_hash($object);
 
+        $previousValue = $this->context->getValue();
+        $previousObject = $this->context->getObject();
+        $previousMetadata = $this->context->getMetadata();
+        $previousPath = $this->context->getPropertyPath();
+        $previousGroup = $this->context->getGroup();
+
         foreach ($propertyMetadatas as $propertyMetadata) {
             $this->validateGenericNode(
                 $value,
@@ -235,6 +265,9 @@ public function validatePropertyValue($object, $propertyName, $value, $groups =
             );
         }
 
+        $this->context->setNode($previousValue, $previousObject, $previousMetadata, $previousPath);
+        $this->context->setGroup($previousGroup);
+
         return $this;
     }