avoid aborting profiles walker when queue is empty
avoid aborting profiles walker when queue is empty

RouxRC/weboob,RouxRC/weboob,sputnick-dev/weboob,nojhan/weboob-devel,sputnick-dev/weboob,RouxRC/weboob,sputnick-dev/weboob,nojhan/weboob-devel,willprice/weboob,willprice/weboob,nojhan/weboob-devel,willprice/weboob