Yes....in the reply or edit GUI it does. But as soon as it is posted, it disappears. At least on Firefox. I think if I'd have remembered to do as you said as I composed the original message, it probably would have worked. But it won't on edit. Hotlinks are really fickle here. But I can be too so I guess it's ok.
It's the hotlink button and GUI not functioning that I complain endlessly about, though.
:)