remove obsolete code from patch.diff repo.status already does this filtering. If the caller supplies a set of changes, it's his responsibility to filter out what he doesn't want.

#!/bin/sh

hg init
mkfifo p

hg serve --stdio < p &
P=$!
(echo lock; echo addchangegroup; sleep 5) > p &
Q=$!
sleep 3
kill -HUP $P
wait
echo .hg/* .hg/store/*