you might have unknowingly answered your own question
the key is the '?' in the url. i believe we'll be relaxing the regex restriction to allow it to work. not sure, but i seem to recall Rick being open to it.
in any event, if you MUST have it NOW in 7.2.2, its a very simple change to the do_markup routine and specifically the [img] tag markup.
just have it relax and not treat ?s with disdain
