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

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m "test" -d "1000000 0"
hg verify
hg parents
hg status
hg rollback
hg verify
hg parents
hg status