use a more reliable way to find what are the new changesets on pull/unbundle The number of csets and the hooks where wrong (negative number of csets) when we unbundled a bundle which contains csets we already had. Remove unused variables.

#!/bin/sh

mkdir a
cd a
hg init
echo foo > b
hg add b
hg ci -m "b" -d "1000000 0"

chmod -w .hg

cd ..

hg clone a b

chmod +w a/.hg # let test clean up

cd b
hg verify