HG environment variables take precedence over hgrc
manifest hash: c128b53429f861c0b75c2a81c6ad4907e4779810
#!/bin/sh -x
hg init
echo a > a
hg add a
hg commit -t "test" -u test -d "0 0"
hg history
hg tag -u test -d "0 0" "bleah"
hg history
echo foo >> .hgtags
hg tag -u test -d "0 0" "bleah2" || echo "failed"