diff --git a/source/java/org/alfresco/repo/copy/CopyServiceImpl.java b/source/java/org/alfresco/repo/copy/CopyServiceImpl.java
index 91270e6731..80c1c4348d 100644
--- a/source/java/org/alfresco/repo/copy/CopyServiceImpl.java
+++ b/source/java/org/alfresco/repo/copy/CopyServiceImpl.java
@@ -548,8 +548,14 @@ public class CopyServiceImpl implements CopyService
             ChildAssociationDefinition childAssocDef = (ChildAssociationDefinition) assocDef;
             if (dropName && !childAssocDef.getDuplicateChildNamesAllowed())
             {
-                // duplicate children are not allowed.
-                targetNodeProperties.remove(ContentModel.PROP_NAME);
+                // ALF-13949: A behaviour callback (e.g. WorkingCopyAspect) may already have generated a new name, so
+                // preserve the new name if it has changed
+                String newName = (String) targetNodeProperties.get(ContentModel.PROP_NAME);
+                if (newName != null && newName.equals(nodeService.getProperty(sourceNodeRef, ContentModel.PROP_NAME)))
+                {
+                    // duplicate children are not allowed.
+                    targetNodeProperties.remove(ContentModel.PROP_NAME);
+                }
             }
         }
         
diff --git a/source/java/org/alfresco/repo/model/filefolder/FileFolderServiceImpl.java b/source/java/org/alfresco/repo/model/filefolder/FileFolderServiceImpl.java
index f47ca76c4e..beef653df3 100644
--- a/source/java/org/alfresco/repo/model/filefolder/FileFolderServiceImpl.java
+++ b/source/java/org/alfresco/repo/model/filefolder/FileFolderServiceImpl.java
@@ -1139,7 +1139,10 @@ public class FileFolderServiceImpl implements FileFolderService
        
         // Only update the name if it has changed
         String currentName = (String)nodeService.getProperty(targetNodeRef, ContentModel.PROP_NAME);
-        if (currentName.equals(newName) == false)
+        
+        // ALF-13949: WorkingCopyAspect intentionally generates new names for all copies of working copies (which no
+        // longer have the working copy aspect) so leave these alone after copy
+        if (!currentName.equals(newName) && !nodeService.hasAspect(sourceNodeRef, ContentModel.ASPECT_WORKING_COPY))
         {
             try
             {
diff --git a/source/java/org/alfresco/repo/security/authority/AuthorityDAOImpl.java b/source/java/org/alfresco/repo/security/authority/AuthorityDAOImpl.java
index 342af25dc7..db3f9483c9 100644
--- a/source/java/org/alfresco/repo/security/authority/AuthorityDAOImpl.java
+++ b/source/java/org/alfresco/repo/security/authority/AuthorityDAOImpl.java
@@ -797,7 +797,7 @@ public class AuthorityDAOImpl implements AuthorityDAO, NodeServicePolicies.Befor
                 {
                     listAuthorities(null, name, authorities, true, true);
                 }
-                if(!TransactionalResourceHelper.getSet(DELETING_AUTHORITY_SET_RESOURCE).contains(name))
+                if(AlfrescoTransactionSupport.getTransactionId() != null && !TransactionalResourceHelper.getSet(DELETING_AUTHORITY_SET_RESOURCE).contains(name))
                 {
                     userAuthorityCache.put(name, Collections.unmodifiableSet(authorities));
                 }
diff --git a/source/java/org/alfresco/repo/security/person/PersonServiceImpl.java b/source/java/org/alfresco/repo/security/person/PersonServiceImpl.java
index 9ec216ee2a..4133b4bd82 100644
--- a/source/java/org/alfresco/repo/security/person/PersonServiceImpl.java
+++ b/source/java/org/alfresco/repo/security/person/PersonServiceImpl.java
@@ -1715,7 +1715,7 @@ public class PersonServiceImpl extends TransactionListenerAdapter implements Per
     private void putToCache(String userName, Set<NodeRef> refs)
     {
         String key = userName.toLowerCase();
-        if(!TransactionalResourceHelper.getSet(DELETING_PERSON_SET_RESOURCE).contains(key))
+        if(AlfrescoTransactionSupport.getTransactionId() != null && TransactionalResourceHelper.getSet(DELETING_PERSON_SET_RESOURCE).contains(key))
         {
             this.personCache.put(key, refs);
         }