Bug 23443: Do not checkin an item if checked out to another patron when lost fee...

Bug 23443: Do not checkin an item if checked out to another patron when lost fee is paid

Test plan:
0 - Do not apply this patch
1 - Check out an item to a patron
2 - Make sure a fee will be charged when lost
3 - Mark the item lost
4 - Make sure the fee will not be refunded on return of the item
5 - Return the item
6 - Check it out to a new patron
7 - Write off the fine for the original patron
=> The item is now checked in
8 - Apply this patch and repeat 1 to 7
=> The item is still checked out

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>