Yangman - Module form - no data in Received data code mirror when executing GET from form

When GET is executed from form with checkbox "Fill form ..." unchecked, there are no data in Received data CM after execution of the GET request .
1. Refresh the page. Navigate to network-topology rev. module > config tab > expand network-topology branch > click topology

> click node

branch.
2. Switch view to form.
3. Select GET operation and insert t1 as topology id and n1 as node id.
4. Run GET operation.
5. Switch view to json.
BUGGY BEH: There should be data in Received data code mirror. We only do not want to fill them in the form after execution.