Junio C Hamano venit, vidit, dixit 14.11.2012 00:22:
> Joe Perches <j...@perches.com> writes:
>> I don't believe that reversibility
>> is a really useful aspect of deletion patches
>> when there are known git repositories involved.
> You can read "reversibility" as "safety" if you want.  We would want
> to make sure we know what we are deleting before deleting a path.
> The history that the receiver of such a patch has may have further
> changes that are relevant that the sender of the deletion patch did
> not know about, and removing the path in such a case would make the
> result inconsistent.  If the sender did his work on top of the newer
> version with the change in the path, the sender's patch may still
> have deleted the path but would have had changes to other paths to
> compensate for the loss of that change.

Just in case someone wants to hack on this: To be safe, "git am" would
need to read the blob's sha1 from something like

diff --git a/Makefile b/Makefile
deleted file mode 100644
index 1b6d84d..0000000

and check that the file to be deleted matches.

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