Unfortunately, BorgBackup, a backupping software is very sensible to MsgPack versions
to the extent of pinning patch-level versions…
I believe it's not totally absurd if they do it as they seems to consider it dangerous to
do otherwise.
As a result, I would like to ensure that python3Packages.msgpack are gated with that piece
of software ; of course, in case of security updates, we can consider extracting the patches
if reasonable or just breaking all dependents.
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