change WebGUI.Admin.prototype.processPlugin, which handles messages back from calls to AssetHelper classes, to do any number of little chores according to the message contents rather than just the first one it tests for.

change the Lock AssetHelper to both refresh and display a message indicating that the asset is locked.  the refresh is needed for tree view which displays a little icon.

lib/WebGUI/AssetHelper/Lock.pm

@@ -55,6 +55,7 @@ sub process {
     $asset->addRevision;
     return {
         message         => sprintf($i18n->get('locked asset'), $asset->getTitle),
+        reload => 1,
     };
 }