imerge: fix ancestor calculation If wctx already has two parents, ancestor calculation is wrong. Normally merge is called before wctx gets the second parent, so we simulate this in imerge by temporarily popping the second parent before calling filemerge. Highly dirty. This patch also handles the ParseError move from cmdutil to dispatch.

#!/bin/sh

set -e

mkdir test
cd test
echo foo>foo
hg init
hg addremove
hg commit -m "1"
hg verify

hg clone . ../branch
cd ../branch
hg co
echo bar>>foo
hg commit -m "2"

cd ../test
hg pull ../branch
hg verify
hg co
cat foo
hg manifest --debug