[issue3009] Creating a branch with revision 0 makes it impossible to return to default

[Miki Tebeka]

New submission from Miki Tebeka <miki.tebeka at gmail.com>:

$ hg init
$ hg branch foo
marked working directory as branch foo
$ touch a
$ hg add a
$ hg ci -m 'adding a'
$ hg co -C default
abort: unknown revision 'default'!

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messages: 17451
nosy: tebeka
priority: bug
status: unread
title: Creating a branch with revision 0 makes it impossible to return to default

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Mercurial issue tracker <bugs at mercurial.selenic.com>
<http://mercurial.selenic.com/bts/issue3009>
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