diff --git a/model/model-impl/src/test/java/com/evolveum/midpoint/model/impl/lens/TestAssignmentProcessor.java b/model/model-impl/src/test/java/com/evolveum/midpoint/model/impl/lens/TestAssignmentProcessor.java
index 0211c17b6fe..c45623cf1c3 100644
--- a/model/model-impl/src/test/java/com/evolveum/midpoint/model/impl/lens/TestAssignmentProcessor.java
+++ b/model/model-impl/src/test/java/com/evolveum/midpoint/model/impl/lens/TestAssignmentProcessor.java
@@ -337,6 +337,10 @@ public void test021AddAssignmentModifyAccountAssignment() throws Exception {
         assertNoMinusAttributeValues(plusAccountConstruction,
                 getDummyResourceController().getAttributeQName(DummyResourceContoller.DUMMY_ACCOUNT_ATTRIBUTE_WEAPON_NAME));
 
+        assertTrue("Old legal variable for projection context is not true", accContext.isLegalOld());
+        assertTrue("Legal variable for projection context is not true", accContext.isLegal());
+        assertTrue("Old assigned variable for projection context is not true", accContext.isAssignedOld());
+        assertTrue("Assigned variable for projection context is not true", accContext.isAssigned());
     }
 
     @Test
diff --git a/repo/repo-sql-impl-test/src/test/java/com/evolveum/midpoint/repo/sql/ConcurrencyTest.java b/repo/repo-sql-impl-test/src/test/java/com/evolveum/midpoint/repo/sql/ConcurrencyTest.java
index 6f816329a12..c9493b609e0 100644
--- a/repo/repo-sql-impl-test/src/test/java/com/evolveum/midpoint/repo/sql/ConcurrencyTest.java
+++ b/repo/repo-sql-impl-test/src/test/java/com/evolveum/midpoint/repo/sql/ConcurrencyTest.java
@@ -50,6 +50,13 @@ public class ConcurrencyTest extends BaseSQLRepoTest {
 
     private static final long WAIT_FOR_THREAD_NATURAL_STOP_TIME = 300000;
 
+    @Override
+    public void initSystem() throws Exception {
+        Session session = getFactory().openSession();
+        session.doWork(connection -> System.out.println(">>>> Connection.TRANSACTION_* (transaction isolation level): " + connection.getTransactionIsolation()));
+        session.close();
+    }
+
     @Test
     public void test001TwoWriters_OneAttributeEach__NoReader() throws Exception {
         PropertyModifierThread[] mts = new PropertyModifierThread[] {
@@ -128,11 +135,6 @@ private interface Checker {
     }
 
     private void concurrencyUniversal(String name, long duration, long waitStep, PropertyModifierThread[] modifierThreads, Checker checker) throws Exception {
-
-        Session session = getFactory().openSession();
-        session.doWork(connection -> System.out.println(">>>>" + connection.getTransactionIsolation()));
-        session.close();
-
         final File file = new File("src/test/resources/concurrency/user.xml");
         PrismObject<UserType> user = prismContext.parseObject(file);
         user.asObjectable().setName(new PolyStringType(name));
@@ -508,10 +510,6 @@ public void test100AddOperationExecution() throws Exception {
         int THREADS = 8;
         long DURATION = 30000L;
 
-        Session session = getFactory().openSession();
-        session.doWork(connection -> System.out.println(">>>>" + connection.getTransactionIsolation()));
-        session.close();
-
         UserType user = new UserType(prismContext).name("jack");
 
         OperationResult result = new OperationResult("test100AddOperationExecution");
@@ -603,7 +601,7 @@ public void test110AddAssignments() throws Exception {
     public void test120AddApproverRef() throws Exception {
 
         int THREADS = 4;
-        long DURATION = 30000L;
+        long DURATION = 30_000L;
         final String DELEGATED_REF_FORMAT = "oid-%d-%s";
 
         RoleType role = new RoleType(prismContext).name("judge");
diff --git a/repo/repo-sql-impl-test/testng-db-specific.xml b/repo/repo-sql-impl-test/testng-db-specific.xml
index 61134de60a5..c417bd8a40d 100644
--- a/repo/repo-sql-impl-test/testng-db-specific.xml
+++ b/repo/repo-sql-impl-test/testng-db-specific.xml
@@ -14,4 +14,12 @@
             <class name="com.evolveum.midpoint.repo.sql.closure.OrgClosurePerformanceTest2"/>
         </classes>
     </test>
+    <test name="Concurrency Tests" parallel="false" preserve-order="true" verbose="10" enabled="true">
+        <classes>
+            <class name="com.evolveum.midpoint.repo.sql.ConcurrencyTest"/>
+            <class name="com.evolveum.midpoint.repo.sql.SequenceTest"/>
+            <class name="com.evolveum.midpoint.repo.sql.closure.OrgClosureConcurrencyTest"/>
+            <class name="com.evolveum.midpoint.repo.sql.ExtDictionaryTest"/>
+        </classes>
+    </test>
 </suite>
diff --git a/repo/repo-sql-impl-test/testng-integration.xml b/repo/repo-sql-impl-test/testng-integration.xml
index 458d7c7e2be..0384c9c4fde 100644
--- a/repo/repo-sql-impl-test/testng-integration.xml
+++ b/repo/repo-sql-impl-test/testng-integration.xml
@@ -50,14 +50,6 @@
             <class name="com.evolveum.midpoint.repo.sql.OrgPhotoTest"/>
         </classes>
     </test>
-    <test name="Concurrency Tests" parallel="false" preserve-order="true" verbose="10" enabled="false">        <!-- enabled only for dbtest -->
-        <classes>
-            <class name="com.evolveum.midpoint.repo.sql.ConcurrencyTest"/>
-            <class name="com.evolveum.midpoint.repo.sql.SequenceTest"/>
-            <class name="com.evolveum.midpoint.repo.sql.closure.OrgClosureConcurrencyTest"/>
-            <class name="com.evolveum.midpoint.repo.sql.ExtDictionaryTest"/>
-        </classes>
-    </test>
     <test name="Utils Tests" parallel="false" preserve-order="true" verbose="10" enabled="true">
         <classes>
             <class name="com.evolveum.midpoint.repo.sql.RAnyConverterStaticTest"/>
diff --git a/repo/repo-sql-impl/src/main/java/com/evolveum/midpoint/repo/sql/data/common/dictionary/ExtItemDictionary.java b/repo/repo-sql-impl/src/main/java/com/evolveum/midpoint/repo/sql/data/common/dictionary/ExtItemDictionary.java
index ebb02d41eac..f5b19948eb8 100644
--- a/repo/repo-sql-impl/src/main/java/com/evolveum/midpoint/repo/sql/data/common/dictionary/ExtItemDictionary.java
+++ b/repo/repo-sql-impl/src/main/java/com/evolveum/midpoint/repo/sql/data/common/dictionary/ExtItemDictionary.java
@@ -43,6 +43,12 @@ public class ExtItemDictionary {
     private Map<Integer, RExtItem> itemsById;
     private Map<RExtItem.Key, RExtItem> itemsByKey;
 
+    @PostConstruct
+    public synchronized void initialize() {
+        itemsByKey = null;
+        itemsById = null;
+    }
+
     private boolean fetchItemsIfNeeded() {
         if (itemsByKey != null) {
             return false;
@@ -127,12 +133,6 @@ private RExtItem createOrFindItemByDefinitionInternal(
         return item;
     }
 
-    @PostConstruct
-    public synchronized void initialize() {
-        itemsByKey = null;
-        itemsById = null;
-    }
-
     private void addExtItemAttempt(RExtItem item) {
         Session session = null;
         try {