Fix undo after aborted commit bug
Commit would overwrite undo.dirstate unconditionally, so an undo after
an aborted commit would restore the dirstate from the aborted commit
and not the prior transaction.
This copies dirstate to journal.dirstate and moves it after a
successful transaction.
#!/bin/sh
set -x
mkdir t
cd t
hg init
hg id
echo a > a
hg add a
hg commit -m "test" -d "0 0"
hg co
hg identify
T=`hg -q tip | cut -d : -f 2`
echo "$T first" > .hgtags
cat .hgtags
hg add .hgtags
hg commit -m "add tags" -d "0 0"
hg tags
hg identify
echo bb > a
hg status
hg identify
hg co first
hg id
hg -v id
hg status
echo 1 > b
hg add b
hg commit -m "branch" -d "0 0"
hg id
hg co -m 1
hg id
hg status