story #7393: reindex tracker when permissions on tracker are changed

Change-Id: I0543b1b9efdc646a3ebf5943c634e6e87436ba60
Merge commit 'refs/changes/75/3175/5' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  story #7393: reindex tracker when permissions on tracker are changed

Change-Id: Ib82041ee467d3247aaa4dbd6065e58af22b9831d
This is Tuleap 7.6.99.33

Change-Id: I8db7ecc5cc3ef1758f85625cfae1996718abb984