code: function(item) {
  			this.scope("");
  			return this.fileClient.getWorkspace(item.Location).then(function(workspace) {
  				return this.loadRoot(workspace).then(function() {
  					return this.showItem(item, false); // call with reroot=false to avoid recursion
  				}.bind(this));
  			}.bind(this));
  		}
docs: Re-roots the tree so that the given item is displayable.
  @param {Object} The item to be expanded.
  @returns {orion.Promise}