Fix traceback when nothing was added during unbundle The changegroup and commit hook are now run only when something is modified. The correct number of changesets added is printed.

     1

%% no changes

     2

%% no changes

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%% uncompressed contents in repo

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this is a test

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%% uncompress our working dir copy

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this is a test

     7

%% uncompress our new working dir copy

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this is a test