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a606fcdceb
git subtree split currently validates --prefix against the working tree. This breaks when splitting an older commit or when the working tree does not contain the subtree, even though the commit does. For example: git subtree split --prefix=pkg <commit> fails if pkg was removed later, even though it exists in <commit>. Fix this by validating the prefix against the specified commit using git cat-file instead of the working tree. Add a test to ensure this behavior does not regress. Signed-off-by: Pushkar Singh <pushkarkumarsingh1970@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Please read git-subtree.adoc for documentation. Please don't contact me using github mail; it's slow, ugly, and worst of all, redundant. Email me instead at apenwarr@gmail.com and I'll be happy to help. Avery