** unknown exception encountered, details follow

[Matt Mackall]

On Tue, 2008-10-14 at 16:56 +0200, Benoit Boissinot wrote:
> On Sat, Oct 11, 2008 at 8:30 PM, Patrick Waugh <ptwaugh at gmail.com> wrote:
> > Seems I came across a minor problem.
> >
> > patrick at berrysoft:~/www/shop-dev$ hg --version
> > Mercurial Distributed SCM (version d1c82127573e)
> >
> > Basically, I wanted to rename a directory and so issued this command:
> >
> > hg mv admin secure_admin
> >
> > and there was a problem with the very last file it attempted to move:
> >
> [snip]
> > moving admin/images/icons/folder.gif to secure_admin/images/icons/folder.gif
> >  File "/usr/local/lib/python2.5/site-packages/mercurial/dirstate.py",
> > line 247, in _droppath
> >    if dirs[base] == 1:
> > KeyError: 'admin/images'
> >
> > To get around this, I'll probably just move the directory and use the
> > --after option.
> 
> Can you provide a way to reproduce this ?

We've actually seen two reports of this, one with a bisection, but I
can't seem to find it. I took a peek at it, and can't see how it's
happening.

-- 
Mathematics is the supreme nostalgia of our time.