subrepo: correctly handle update -C with modified subrepos (issue2022)
(based on a patch by Saint Germain)
#!/bin/shmkdir tcd thg initecho a > ahg add ahg commit -m test# do we ever miss a sub-second change?for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do hg co -qC 0 echo b > a hg stdone