Fix request #6775: Bad request when accessing git repositories

Change-Id: I22627e2b39eaf64fa7c800a42a8ec3d25a412e0f
Merge commit 'refs/changes/51/2351/2' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  Fix request #6775: Bad request when accessing git repositories

Change-Id: I322266aa49b786f7d76f641b0458fb96f856b5eb
Tuleap 6.12.99.84

Change-Id: I5dd85388bd0c353f9c5b40865941d037b583441a