gerrit claims rejection, but actually accepts push

obuddenh@troll08:~/depot/qt5-stable/qt3d (5.5)$ git push gerrit HEAD:refs/heads/5.5 HEAD:refs/staging/5.5
Counting objects: 4, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 579 bytes | 0 bytes/s, done.
Total 4 (delta 3), reused 0 (delta 0)
remote: Resolving deltas: 100% (3/3)
remote: Processing changes: refs: 5, done    
To ssh://codereview.qt-project.org/qt/qt3d
   ca3f0d7..04601f2  HEAD -> refs/staging/5.5
 ! [remote rejected] HEAD -> 5.5 (change 107136 currently integrating)
error: failed to push some refs to 'ssh://codereview.qt-project.org/qt/qt3d'
obuddenh@troll08:~/depot/qt5-stable/qt3d (5.5)$ git push gerrit HEAD:refs/heads/5.5 HEAD:refs/staging/5.5
Everything up-to-date