Junio C Hamano 711f6b295c reduce_heads(): protect from duplicate input ...

Because we do not try computing merge base with itself for obvious
reasons, the code was not prepared for an arguably insane case of
the caller feeding the same commit twice to it.

Noticed and test written by Sverre Hvammen Johansen

Signed-off-by: Junio C Hamano <gitster@pobox.com>

2008-07-14 00:09:41 -07:00

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