test again

Signed-off-by: Kenneth Obsequio <k80308392@gmail.com>

models/users/users.attributes.js

@@ -52,6 +52,7 @@ const computedAttributes = [
     label: "Groups",
     type: "array",   // tells the paginator this is a pre-joined association array
     order: 5,
+    filterable: true,   // handled specially in the controller — see extractGroupsFilter()
   },
 ];