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"git diff --cc" did not honor content mangling specified by gitattributes and core.autocrlf when reading from the work tree.
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"git diff --check" incorrectly detected new trailing blank lines when whitespace check was in effect.
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"git for-each-ref" tried to dereference NULL when asked for '%(body)" on a tag with a single incomplete line as its payload.
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"git format-patch" peeked before the beginning of a string when "format.headers" variable is empty (a misconfiguration).
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"git help help" did not work correctly.
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"git mailinfo" (hence "git am") was unhappy when MIME multipart message contained garbage after the finishing boundary.
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"git mailinfo" also was unhappy when the "From: " line only had a bare e-mail address.
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"git merge" did not refresh the index correctly when a merge resulted in a fast-forward.
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"git merge" did not resolve a truly trivial merges that can be done without content level merges.
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"git svn dcommit" to a repository with URL that has embedded usernames did not work correctly.
Contains other various documentation fixes.