merge: notice uncommited copies (issue1000) As mentioned in msg5349 in issue988, "hg update" doesn't take into account uncommitted copies. To reproduce: ---------------- hg init repo cd repo touch foo hg ci -Am 'add foo' echo >> foo hg ci -m 'change foo' hg up -C 0 hg mv foo bar HGMERGE=false thg --debug -y update -------------------------- A similar problem happens with hg merge --force. I'm attaching a possible patch.