No WorkingTree exists after branching

[Eli Zaretskii]

> Date: Sun, 27 Oct 2013 06:24:50 +0800
> From: Xue Fuqiao <xfq.free at gmail.com>
> Cc: bazaar at lists.canonical.com
> 
> On Sat, Oct 26, 2013 at 2:27 PM, Eli Zaretskii <eliz at gnu.org> wrote:
> > So now you need to find out which plugin does this, and consider
> > disabling it, unless you really-really need it.
> 
> Maybe the culprit isn't the plugins.  I spent many hours redoing the
> original procedure without changing the Bazaar/Python/OS version.
> Surprisingly, sometimes there's a WorkingTree, sometimes not.  Looks
> like a heisenbug...  Anyway, I found that if there is no WorkingTree,
> the first ‘bzr branch’ operation in a new repository will take more time.

Did you try comparing the .bzr.log records for the successful and
unsuccessful operations?

Also, did you try with --no-plugins several times, and if so, are you
saying that this, too, sometimes creates a tree and sometimes doesn't?
(If --no-plugins is consistent, then you could have an inconsistently
buggy plugin.)