Bug 29087: Prevent filter_by_for_hold to crash if default holdallowed is not_allowed

Bug 29087: Prevent filter_by_for_hold to crash if default holdallowed is not_allowed

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 8c804c17493ecc9cb993c5434644c1b2a860bae3)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit 34be9ab95bdf6cb6eccc7ca198dd4e4da6eaf291)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>