[issue2186] commit --close-branch says 'created new head'

[mathieu clabaut]

New submission from mathieu clabaut <mathieu.clabaut at gmail.com>:

hg version 1.5.1+172-bf7e63fedca1

When closing a branch, mercurial says 'created new head', when in effects it 
"destroys" a head (there is one item less in the output of "hg heads").

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messages: 12492
nosy: mathieu.clabaut
priority: bug
status: unread
title: commit --close-branch says 'created new head'

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Mercurial issue tracker <bugs at mercurial.selenic.com>
<http://mercurial.selenic.com/bts/issue2186>
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