Bug: -d argument to roxterm doesn't work when there's another instance of roxterm running

The -d (--directory) command-line option to roxterm doesn't work for me when 
there's another instance of roxterm running.  In that case, it starts in my home 
directory instead of the one I supply to -d.  It works fine if roxterm wasn't 
already running.

I'm using Gentoo Linux, with version 1.11.1 of roxterm.  I'm not running the 
full Rox desktop.

I notice a similar problem described in this message:

http://article.gmane.org/gmane.comp.desktop.rox.devel/8553/

But that's an old message.  Perhaps a similar fix is required for this bug, or 
perhaps it was fixed in one place and not another.

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