Bug 31319: (QA follow-up) Search items directly (biblio not used yet)

Bug 31319: (QA follow-up) Search items directly (biblio not used yet)

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
JD amended patch: add 'me' prefix to prevent failure if biblio is linked
with a subscription
DBIx::Class::Storage::DBI::_dbh_execute(): DBI Exception: DBD::mysql::st execute failed: Column 'biblionumber' in where clause is ambiguous at /kohadevbox/koha/Koha/Objects.pm line 394

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>