tests/test-issue1089

mq: incorporate mq repo config when using --mq

For example, incoming should use the paths defined in .hg/patches/hgrc
instead of .hg/hgrc.

#!/bin/sh

hg init a
cd a
mkdir a
echo a > a/b
hg ci -Am m
hg rm a
hg ci -m m a

mkdir a b
echo a > a/b
hg ci -Am m
hg rm a
cd b
# relative delete
hg ci -m m ../a