pull-requests: allow super-admins to force change state of locked PRs.

- because we still get into that state in some cases, we just create a helper to unlock it easier.
just for super-admins.

rhodecode/apps/repository/views/repo_pull_requests.py

@@ -275,6 +275,20 b' class RepoPullRequestsView(RepoAppView, '
 
         c.state_progressing = pull_request.is_state_changing()
 
+        _new_state = {
+            'created': PullRequest.STATE_CREATED,
+        }.get(self.request.GET.get('force_state'))
+        if c.is_super_admin and _new_state:
+            with pull_request.set_state(PullRequest.STATE_UPDATING, final_state=_new_state):
+                h.flash(
+                    _('Pull Request state was force changed to `{}`').format(_new_state),
+                    category='success')
+                Session().commit()
+
+            raise HTTPFound(h.route_path(
+                'pullrequest_show', repo_name=self.db_repo_name,
+                pull_request_id=pull_request_id))
+
         version = self.request.GET.get('version')
         from_version = self.request.GET.get('from_version') or version
         merge_checks = self.request.GET.get('merge_checks')

rhodecode/model/db.py

@@ -3901,8 +3901,8 b' class _SetState(object):'
         self._current_state = None
 
     def __enter__(self):
-        log.debug('StateLock: entering set state context, setting state to: `%s`',
-                  self._pr_state)
+        log.debug('StateLock: entering set state context of pr %s, setting state to: `%s`',
+                  self._pr, self._pr_state)
         self.set_pr_state(self._pr_state)
         return self
 
@@ -3912,8 +3912,9 b' class _SetState(object):'
             return None
 
         self.set_pr_state(self._org_state)
-        log.debug('StateLock: exiting set state context, setting state to: `%s`',
-                  self._org_state)
+        log.debug('StateLock: exiting set state context of pr %s, setting state to: `%s`',
+                  self._pr, self._org_state)
+
     @property
     def state(self):
         return self._current_state

rhodecode/templates/pullrequests/pullrequest_show.mako

@@ -438,6 +438,11 b''
 
     <h2 style="text-align: center">
         ${_('Cannot show diff when pull request state is changing. Current progress state')}: <span class="tag tag-merge-state-${c.pull_request.state}">${c.pull_request.state}</span>
+
+        % if c.is_super_admin:
+        <br/>
+        If you think this is an error try <a href="${h.current_route_path(request, force_state='created')}">forced state reset</a> to <span class="tag tag-merge-state-created">created</span> state.
+        % endif
     </h2>
 
   % else: