Unfortuantely it still fails, but this is not regression. Now
with the new patch in Core the exception is caught and so at least
the binary survives (and the API returns 0).
New unit-test added in Core to help track the issue down and fix.
Also, free the memory allocated by the API.
Change-Id: I5d788a2ee0383de1c323af4cd6b39b8615a35baf
use a specific message from the client for set the visibility state of
a group instead of hijacking the update row/column header message
Change-Id: I69d66b30db0b4d8a0082cbd2524120491d4f97cb
Reviewed-on: https://gerrit.libreoffice.org/45446
Reviewed-by: Marco Cecchetti <mrcekets@gmail.com>
Tested-by: Marco Cecchetti <mrcekets@gmail.com>
