links in captions

When you click on a link suggestion, it linkifies the first instance of that piece of text. This is fair enough, however if the first time the text is mentioned is in the caption of a picture, that gets linkified instead of text in the post body.

For example in this post I mention Gmail several times, but the first time is in the caption of the picture. I wouldn't want the text in the caption of the picture turned into the link, but the one in the first paragraph.