Allow repo filter tree to expand with single click

layouts/custom/repository.html

@@ -160,6 +160,10 @@
                 "plugins": ["themes", "checkbox"]
             })
 
+            $("#jstree").on('select_node.jstree', function (e, data) {
+                data.instance.toggle_node(data.node);
+            });
+
             $("#jstree").bind("check_node.jstree uncheck_node.jstree", function (e, data) {
                 var checked = $("#jstree").jstree("get_checked")
                 var filter = []