pull-requests: expose force refresh of merge workspace and expose all metadata for merge message formatting.

rhodecode/model/pull_request.py

@@ -1303,10 +1303,13 b' class PullRequestModel(BaseModel):'
             merge_state = self._refresh_merge_state(
                 pull_request, target_vcs, target_ref)
         else:
-            possible = pull_request.\
-                last_merge_status == MergeFailureReason.NONE
+            possible = pull_request.last_merge_status == MergeFailureReason.NONE
+            metadata = {
+                'target_ref': pull_request.target_ref_parts,
+                'source_ref': pull_request.source_ref_parts
+            }
             merge_state = MergeResponse(
-                possible, False, None, pull_request.last_merge_status)
+                possible, False, None, pull_request.last_merge_status, metadata=metadata)
 
         return merge_state
 

rhodecode/templates/pullrequests/pullrequest_merge_checks.mako

@@ -28,6 +28,9 b''
                 </span>
             </li>
         % endfor
+        <li>
+            Try <a href="${h.current_route_path(request, force_refresh=1)}">forced recheck</a> of the merge workspace in case current status seems wrong.
+        </li>
     </ul>
     % endif