merge: update dirstate correctly for non-branchmerge updates - we don't actually need the context in recordupdates - use -1 for filesize to force check on normal update - only record copy for branchmerges - forget moved files on update

#!/bin/sh

hg init
touch a
hg add a
hg ci -m "a" -d "1000000 0"

echo 123 > b
hg add b
hg diff --nodates

hg diff --nodates -r tip

echo foo > a
hg diff --nodates