tests/test-add

Fix copies reporting in log and convert.

If copy logged in file revision, we report copy for changeset only
if file revisions linkrev points back to the changeset in question
or both changeset parents contain different file revisions.

This fixes extra copies reported when executable bit was changed for
previously copied file.

#!/bin/sh

hg init a
cd a
echo a > a
hg add -n
hg st
hg add
hg st

echo b > b
hg add -n b
hg st
hg add b || echo "failed to add b"
hg st
echo % should fail
hg add b
hg st

hg ci -m 0
echo % should fail
hg add a

echo aa > a
hg ci -m 1
hg up 0
echo aaa > a
hg ci -m 2

hg merge
hg st
echo % should fail
hg add a
hg st
hg ci -m merge

echo % issue683
hg rm a
hg st
echo a > a
hg add a
hg st

hg add c && echo "unexpected addition of missing file"
echo c > c
hg add d c && echo "unexpected addition of missing file"
hg st