Klaudiusz,
I’ve attached three patch files that you can use to see just the isolated changes of the shelf. These shouldn’t have much (if any) impact on other parts of the replication system, so you shouldn’t experience crashes.
P4 doesn’t actually like / handle patches very well, so I generated these using a secondary tool. As such, you probably won’t be able to directly apply them (but they should give you context into what exactly you need).
Thanks,
Jon