It seems like ModReserveFill and ModReserveAffect should both produce action logs for holds.
Test Plan:
1) Apply this patch
2) Place a hold
3) Check in the item to trap the hold
4) Check out the item to fill the hold
5) Check the action logs for that reserve id
6) Note the new logs!
Signed-off-by: David Nind <david@davidnind.com> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org> Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com> Signed-off-by: Joy Nelson <joy@bywatersolutions.com>