Reset MetaSource selector after adding (to focus on the new instance).

Author: cdujeu

core/src/plugins/editor.ajxp_repository/class.RepositoryEditor.js

@@ -348,6 +348,7 @@ Class.create("RepositoryEditor", AbstractEditor, {
 
         this.metaSelector.observe("change", function(){
             var plugId = this.metaSelector.getValue();
+            if(!addFormDetail) return;
             addFormDetail.update("");
             addFormDetail.addClassName("empty");
             if(plugId){
@@ -426,6 +427,13 @@ Class.create("RepositoryEditor", AbstractEditor, {
                 button.addClassName("SF_disabled");
                 this.setClean();
             }
+            if(action == "meta_source_add"){
+                this.metaSelector.setValue("");
+                this.metaSelector.fire("chosen:updated");
+                var addFormD = form.down(".meta_plugin_new_form");
+                addFormD.update("");
+                addFormD.addClassName("empty");
+            }
         }.bind(this);
         conn.sendAsync();