Fix for #1007 (Raising a MaxSizeExceeded exception results in a 413 response with no body).
Fix for #1007 (Raising a MaxSizeExceeded exception results in a 413 response with no body).

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extra : convert_revision : svn%3Ae1d34091-3ce9-0310-8e96-997e60db3bd5/trunk%402673

cherrypy/magicbus