request #6404: Do not display postponed error for phpwiki

Change-Id: I7e5d11db652553e19b12a72d8a379ea4b4bf0313
Merge commit 'refs/changes/41/2041/1' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #6404: Do not display postponed error for phpwiki

Change-Id: Ic630c74c21728c849da2ed14b9fc1c280d140393
Tuleap 6.11.99.3

Change-Id: I44fb9fe634f0eeb7293e44a01f2acb6967e5f194