Backport #64584: reef: crash: void Locker::handle_file_lock(ScatterLock*, ceph::cref_t<MLock>&): assert(lock->get_state() == LOCK_LOCK || lock->get_state() == LOCK_MIX || lock->get_state() == LOCK_MIX_SYNC2) - CephFS - Ceph

Backport #64584

https://github.com/ceph/ceph/pull/56049