Facebook-generated get parameters make Google+ think it is on a different page

If you share a page on facebook, then click on the link from facebook, you'll end up on your site, with something like "?fb_action_types=og.likes" appended to your domain. Twitter and Facebook seem to "know" that this does not mean we're on a different page, but G+1 seems to think we're on a different page, as if we added "?whatever=whatever".

I'm setting this as a support request, because I'm not sure if it can be fixed here, or if it's a G+1 issue.