diff --git a/source/java/org/alfresco/repo/action/executer/TransformActionExecuter.java b/source/java/org/alfresco/repo/action/executer/TransformActionExecuter.java
index 8bb9882aeb..f6baa43976 100644
--- a/source/java/org/alfresco/repo/action/executer/TransformActionExecuter.java
+++ b/source/java/org/alfresco/repo/action/executer/TransformActionExecuter.java
@@ -204,7 +204,7 @@ public class TransformActionExecuter extends ActionExecuterAbstractBase
         
         // Calculate the destination name
         String originalName = (String)nodeService.getProperty(actionedUponNodeRef, ContentModel.PROP_NAME);
-        String newName = transformName(this.mimetypeService, originalName, mimeType);
+        String newName = transformName(this.mimetypeService, originalName, mimeType, true);
         
         // Since we are overwriting we need to figure out whether the destination node exists
         NodeRef copyNodeRef = null;
@@ -260,7 +260,7 @@ public class TransformActionExecuter extends ActionExecuterAbstractBase
             String originalTitle = (String)nodeService.getProperty(actionedUponNodeRef, ContentModel.PROP_TITLE);
             if (originalTitle != null && originalTitle.length() > 0)
             {
-                String newTitle = transformName(this.mimetypeService, originalTitle, mimeType);
+                String newTitle = transformName(this.mimetypeService, originalTitle, mimeType, false);
                 nodeService.setProperty(copyNodeRef, ContentModel.PROP_TITLE, newTitle);
             }
         }
@@ -317,7 +317,7 @@ public class TransformActionExecuter extends ActionExecuterAbstractBase
      * 
      * @return name with new extension as appropriate for the mimetype
      */
-    public static String transformName(MimetypeService mimetypeService, String original, String newMimetype)
+    public static String transformName(MimetypeService mimetypeService, String original, String newMimetype, boolean alwaysAdd)
     {
         // get the current extension
         int dotIndex = original.lastIndexOf('.');
@@ -326,15 +326,23 @@ public class TransformActionExecuter extends ActionExecuterAbstractBase
         {
             // we found it
             sb.append(original.substring(0, dotIndex));
+            
+            // add the new extension
+            String newExtension = mimetypeService.getExtension(newMimetype);
+            sb.append('.').append(newExtension);
         }
         else
         {
-            // no extension
+            // no extension so dont add a new one
             sb.append(original);
+            
+            if (alwaysAdd == true)
+            {               
+                // add the new extension
+                String newExtension = mimetypeService.getExtension(newMimetype);
+                sb.append('.').append(newExtension);
+            }
         }
-        // add the new extension
-        String newExtension = mimetypeService.getExtension(newMimetype);
-        sb.append('.').append(newExtension);
         // done
         return sb.toString();
     }
diff --git a/source/java/org/alfresco/repo/domain/hibernate/DbAccessControlListImpl.java b/source/java/org/alfresco/repo/domain/hibernate/DbAccessControlListImpl.java
index 8be3d5bf7f..2fae4bc2db 100644
--- a/source/java/org/alfresco/repo/domain/hibernate/DbAccessControlListImpl.java
+++ b/source/java/org/alfresco/repo/domain/hibernate/DbAccessControlListImpl.java
@@ -171,6 +171,9 @@ public class DbAccessControlListImpl extends LifecycleAdapter
             // remove from the entry list
             entry.delete();
         }
+        // Fix issues with deleting and adding permissions
+        // See AR-918
+        this.getSession().flush();
         // done
         if (logger.isDebugEnabled())
         {
diff --git a/source/java/org/alfresco/repo/jscript/Node.java b/source/java/org/alfresco/repo/jscript/Node.java
index 0555d0f4d6..1d4030e8f3 100644
--- a/source/java/org/alfresco/repo/jscript/Node.java
+++ b/source/java/org/alfresco/repo/jscript/Node.java
@@ -1390,7 +1390,7 @@ public class Node implements Serializable, Scopeable
         {
             // Copy the content node to a new node
             String copyName = TransformActionExecuter.transformName(this.services.getMimetypeService(), getName(),
-                    mimetype);
+                    mimetype, true);
             NodeRef copyNodeRef = this.services.getCopyService().copy(this.nodeRef, destination,
                     ContentModel.ASSOC_CONTAINS,
                     QName.createQName(ContentModel.PROP_CONTENT.getNamespaceURI(), QName.createValidLocalName(copyName)),