Shawn O. Pearce fa620f1ac8 Ignore no-op changes in paranoid update hook ...

If the hook gets invoked with identical old and new ids there
is no change taking place.  We probably should not have been
called, but instead of failing silently allow the no-op.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2008-05-25 20:29:30 -07:00

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