Unable to re-add projectlinks widget in dashboard

This fix request #6020

Change-Id: Ibd81cea1854b6ae5aa6a6927a7cbc0b4274d5db6
Merge commit 'refs/changes/58/1758/1' of ssh://gerrit.tuleap.net:29418/tuleap into stable

* ssh://gerrit.tuleap.net:29418/tuleap:
  Unable to re-add projectlinks widget in dashboard

Change-Id: I12aa9bf2acfaf21f00715a9ececf507786982bb9
This is Tuleap 6.9.99.30

Change-Id: I7cfede92ec539279bdd67dc47bc471943f825d50