Bug 27004: Regression tests

Bug 27004: Regression tests

This patch introduces regression tests for the change in
Koha::Checkouts::ReturnClaim->store.

To test:
1. Apply this patch
2. Run:
   $ kshell
  k$ prove t/db_dependent/Koha/Checkouts/ReturnClaim.t
=> FAIL: Tests fail

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit c4702149b2a9d3ec6216a7526a2c52b91de5d4cd)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit f1b6a5321b6593e54b2870229404df8544f37e9e)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>