view tests/test-issue433 @ 6431:a42d8d3e6ea9

copies: refactor symmetricdifference as _findlimit

We only need to track the lowest revision seen, which makes things simpler.

#!/bin/sh
# http://www.selenic.com/mercurial/bts/issue433

hg init a
cd a
echo a > a
hg commit -Ama

hg parents -r 0 doesnotexist
true