Test proves now that a 'destructive merge' is removed by
DelAuthority.
Test plan:
Run t/db_dependent/Authority/Merge.t. Should fail when you
do not apply the other two patches and pass with them.
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org> Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com> Signed-off-by: Joy Nelson <joy@bywatersolutions.com>