Public bug reported:

[Impact]
Multi-block transaction could fail during unexpected power down
in this case, it should be stop replaying this log instead of throwing 
unrecoverable error

[Test Case]
need to simulate power outage to reproduce this issue

[Where problems could occur]
This upstream PR was created 2 months ago and Luminous was EOL upstream for a 
while
so Luminous Bluefs code is outdated, in order to backport this commit
it might also need to backport some dependencies

[Other Info]
upstream tracker: https://tracker.ceph.com/issues/52079
PR: https://github.com/ceph/ceph/pull/42830

** Affects: ceph (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: ceph (Ubuntu Bionic)
     Importance: Undecided
         Status: New

** Also affects: ceph (Ubuntu Bionic)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1945555

Title:
  [SRU] accept undecodable multi-block bluefs transactions on log

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