...and enable a fragile and broken rendering
test into a warning until a the rendering is
more stable/fixed.

Change-Id: Id6ed596ddb64d94af2d4b7d49c8f185ac6a8b4ff
Reviewed-on: https://gerrit.libreoffice.org/30413


Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>
Tested-by: Ashod Nakashian <ashnakash@gmail.com>
(cherry picked from commit 3e1e3e78)