request #7443: cardwall modal opens with an error message when anonymous user moves card

Change-Id: Id3e651525b53bef8ac086319c960a50e0bcabdb9
Merge commit 'refs/changes/21/3021/1' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7443: cardwall modal opens with an error message when anonymous user moves card
This is Tuleap 7.4.99.37

Change-Id: I005c699380f457658770cbdcb8120f980a7af58b