Fixed ALF-4808: NPE (Failure in ProgressWatcher) in patch.updateDmPermissions if isolation level cannot be set

- Unboxing of a variable not set if the isolation level could not be set


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@22593 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/admin/patch/impl/DmPermissionsPatch.java

@@ -107,6 +107,7 @@ public class DmPermissionsPatch extends AbstractPatch
                             catch (IllegalStateException e)
                             {
                                 // Can't be set.  We're done here.
+                                toDo = 0L;
                                 running = false;
                                 return 0L;
                             }