Based on ESC discussion around stability of tests.

Change-Id: I1c6d84c91c1f85435771013b028cb3aa65a347fc
Reviewed-on: https://gerrit.libreoffice.org/32408Reviewed-by: Markus Mohrhard <markus.mohrhard@googlemail.com>
Tested-by: Markus Mohrhard <markus.mohrhard@googlemail.com>