Fix request #5736: A click on the pencil for an empty comment open edition form

Change-Id: Ie217674c3850b50373790366e937c1bace3c8cfe
Merge commit 'refs/changes/22/1622/2' of http://gerrit.tuleap.net/tuleap into tuleap-stable-master

* http://gerrit.tuleap.net/tuleap:
  Fix request #5736: A click on the pencil for an empty comment open edition form

Change-Id: Ia4948dbb1c42ca8eedef133e2072987ccea6f291
Tuleap 6.8.99.23

Change-Id: Id84383a03d95316703e1605cc0e31c9e335a39f0