commit: drop duplicated parents
commit67bfc030d7b27c007853776e8028598bdfa2cae0
authorJunio C Hamano <gitster@pobox.com>
Tue, 3 Jun 2008 05:17:42 +0000 (2 22:17 -0700)
committerJunio C Hamano <gitster@pobox.com>
Tue, 3 Jun 2008 06:55:57 +0000 (2 23:55 -0700)
tree8fae799207c6263f9826e333de27fdfd9eb50c51
parent69e66f5500ef6079e3374a6654ef1f6df0c6f360
commit: drop duplicated parents

The scripted version of git-commit internally used git-commit-tree which
omitted duplicated parents given from the command line.  This prevented a
nonsensical octopus merge from getting created even when you said "git
merge A B" while you are already on branch A.

However, when git-commit was rewritten in C, this sanity check was lost.
This resurrects it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-commit.c
t/t7502-commit.sh