update

src/case/tree/branchrelation.js

@@ -20,6 +20,9 @@ BI.BranchRelation = BI.inherit(BI.Widget, {
 
     _init: function () {
         BI.BranchRelation.superclass._init.apply(this, arguments);
+    },
+
+    mounted: function () {
         this.populate(this.options.items);
     },