diff --git a/eZ/Publish/API/Repository/Tests/RoleServiceTest.php b/eZ/Publish/API/Repository/Tests/RoleServiceTest.php
index d05bcf8cd46..90cd37f6abf 100644
--- a/eZ/Publish/API/Repository/Tests/RoleServiceTest.php
+++ b/eZ/Publish/API/Repository/Tests/RoleServiceTest.php
@@ -1781,6 +1781,51 @@ public function testDeletePolicy()
         $this->assertSame(array(), $role->getPolicies());
     }
 
+    /**
+     * Test for the addPolicyByRoleDraft() method.
+     *
+     * @see \eZ\Publish\API\Repository\RoleService::addPolicyByRoleDraft()
+     */
+    public function testAddPolicyWithRoleAssignment()
+    {
+        $repository = $this->getRepository();
+
+        /* BEGIN: Use Case */
+        $roleService = $repository->getRoleService();
+        $userService = $repository->getUserService();
+
+        /* Create new user group */
+        $mainGroupId = $this->generateId('group', 4);
+        $parentUserGroup = $userService->loadUserGroup($mainGroupId);
+        $userGroupCreate = $userService->newUserGroupCreateStruct('eng-US');
+        $userGroupCreate->setField('name', 'newUserGroup');
+        $userGroup = $userService->createUserGroup($userGroupCreate, $parentUserGroup);
+
+        /* Create Role */
+        $roleCreate = $roleService->newRoleCreateStruct('newRole');
+        $roleDraft = $roleService->createRole($roleCreate);
+        $roleService->publishRoleDraft($roleDraft);
+
+        $role = $roleService->loadRole($roleDraft->id);
+        $roleService->assignRoleToUserGroup($role, $userGroup);
+
+        $roleAssignmentsBeforeNewPolicy = $roleService->getRoleAssignments($role)[0];
+
+        /* Add new policy to existing role */
+        $roleUpdateDraft = $roleService->createRoleDraft($role);
+        $roleUpdateDraft = $roleService->addPolicyByRoleDraft(
+            $roleUpdateDraft,
+            $roleService->newPolicyCreateStruct('content', 'create')
+        );
+        $roleService->publishRoleDraft($roleUpdateDraft);
+
+        $roleAfterUpdate = $roleService->loadRole($role->id);
+        $roleAssignmentsAfterNewPolicy = $roleService->getRoleAssignments($roleAfterUpdate)[0];
+        /* END: Use Case */
+
+        $this->assertNotEquals($roleAssignmentsBeforeNewPolicy->id, $roleAssignmentsAfterNewPolicy->id);
+    }
+
     /**
      * Test loading user/group role assignments.
      *
diff --git a/eZ/Publish/Core/Persistence/Cache/UserHandler.php b/eZ/Publish/Core/Persistence/Cache/UserHandler.php
index 2ff2e806a10..84577812574 100644
--- a/eZ/Publish/Core/Persistence/Cache/UserHandler.php
+++ b/eZ/Publish/Core/Persistence/Cache/UserHandler.php
@@ -304,7 +304,10 @@ public function loadRoleAssignmentsByRoleId($roleId)
         $roleAssignments = $this->persistenceHandler->userHandler()->loadRoleAssignmentsByRoleId($roleId);
 
         $cacheItem->set($roleAssignments);
-        $cacheTags = ['role-assignment-role-list-' . $roleId];
+        $cacheTags = [
+            'role-assignment-role-list-' . $roleId,
+            'role-' . $roleId, /* Role update (policies) changes role assignment id */
+        ];
         foreach ($roleAssignments as $roleAssignment) {
             $cacheTags = $this->getCacheTagsForRoleAssignment($roleAssignment, $cacheTags);
         }
@@ -333,8 +336,10 @@ public function loadRoleAssignmentsByGroupId($groupId, $inherit = false)
         $roleAssignments = $this->persistenceHandler->userHandler()->loadRoleAssignmentsByGroupId($groupId, $inherit);
 
         $cacheItem->set($roleAssignments);
-        // Tag below is for empty results,  non empty it might have duplicated tags but cache will reduce those.
-        $cacheTags = ['role-assignment-group-list-' . $groupId];
+        $cacheTags = [
+            'role-assignment-group-list-' . $groupId, /* empty results,  non empty it might have duplicated tags but cache will reduce those. */
+            'role-' . $groupId, /* Role update (policies) changes role assignment id */
+        ];
         foreach ($roleAssignments as $roleAssignment) {
             $cacheTags = $this->getCacheTagsForRoleAssignment($roleAssignment, $cacheTags);
         }