From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jens Lehmann <Jens.Lehmann@web.de>
Subject: Re: warning: unable to rmdir my/module: Directory not empty
Date: Thu, 04 Nov 2010 21:49:17 +0100
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To: Mathieu Malaterre <mathieu.malaterre@gmail.com>
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Am 04.11.2010 10:55, schrieb Mathieu Malaterre:
>   Does anyone knows where is this warning is coming from:
> 
> warning: unable to rmdir my/module: Directory not empty
> 
>   I have a git master, an empty branch and a submodule on master.
> Switching from master to my 'empty' branch always trigger this
> warning. ...

This is because submodule deletion is not well supported at the
moment. There has been a lot of discussion how to make git handle
that better but no one implemented it so far. But it's on my ToDo
list, so stay tuned ...