Bug 25261: (QA follow-up) Add handling to SCO

Bug 25261: (QA follow-up) Add handling to SCO

Test plan
1/ Enable the feature as per previous patches
2/ Attempt to checkout an item with materials attached via the SCO
3/ Note that the checkut is blocked with the message 'Item must be
issued at a circulation desk'
4/ Signoff

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>