Configure tests for clean run in Docker

Change-Id: I4267e4635b018481ed7d01dd86866a3530dd0657
Merge commit 'refs/changes/43/2843/4' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  Configure tests for clean run in Docker
This is Tuleap 7.3.99.31