bookmarks: allow pushing active bookmark on new remote head (
issue5236)
Before 'hg push -B .' on new remote head complained with:
abort: push creates new remote head ...
It was because _nowarnheads was not expanding active bookmark
name, so it didn't add active bookmark "proper" name to no
warn heads list.
$ hg init
$ echo a > a
$ hg ci -qAm 'add a'
$ hg init subrepo
$ echo 'subrepo = http://example.net/libfoo' > .hgsub
$ hg ci -qAm 'added subrepo'
$ hg up -qC 0
$ echo ax > a
$ hg ci -m 'changed a'
created new head
$ hg up -qC 1
$ cd subrepo
$ echo b > b
$ hg add b
$ cd ..
Should fail, since there are added files to subrepo:
$ hg merge
abort: uncommitted changes in subrepository 'subrepo'
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