serve: respect settings from .hg/hgrc create_server was looking only at the root ui object, ignoring any settings from .hg/hgrc. To keep respecting command-line arguments, commands.serve must also call repo.ui.setconfig.

#!/bin/sh

hg init a
echo a > a/a
hg --cwd a ci -A -m a
hg clone a b
echo b > b/b
hg --cwd b ci -A -m b
chmod 100 a/.hg/store
hg --cwd b push ../a
chmod 700 a/.hg/store