Yang UI - History tab - Filling successfully POSTed data to form gives no reaction

Yang UI - History tab - When clicking "fill sent data" button to fill successfully POSTed data to form, the application does no action.

Repro steps:
1. Yang UI -> API tab
2. Expand network-topology rev.2013-10-21 -> expand config -> click network-topology to load network-topology form.
3. Select DELETE operation and click Send button.
4. Click arrow expander in front of network-topology button in the form.
5. Click topology list + button, insert "t0" into topology-id input field, select POST operation and click Send button. Request has been sent succesfully.
6. Navigate to HISTORY tab, there is record of POST method with Sent data.
7. Click "fill sent data" button (drop button) to fill the sent data to the form.
8. Expected behaviour: The data is filled in the form.
9. BUGGY BEHAVIOUR: The application performs no action.