Facebook backlink with %2F instead of slash !!!

Ivan,
I'm a bit confused. I've never actually seen that problem before, and the results I'm getting with some testing are equally strange. Facebook has a URL Debug tool, which is great for homing in on what's happening in these situations. When I put the 'good' URL in, above, with slashes, I see a line I've never seen before called "URL for Likes:". That URL has the 'bad' URL.
developers.facebook.com/tools/debug/og/o...s-watts-pma-vma.html

I'm not sure where that URL for Likes setting is coming from. Again, I've never seen it, and there's no tag like that that I'm aware of. Even stranger, if you use the debug tool for the 'bad' URL, you get the following info:
developers.facebook.com/tools/debug/og/o...s-watts-pma-vma.html

At the bottom of that, you can see that the page is being redirected from the %2F thing to the / version (the canonical version is in bold). Still though, it seems like Facebook isn't using the right information.

Can you let me know:
* Do all your pages have this problem, or is it just this specific page?
* Were you using Like buttons on your site before JFBConnect?
* Did you enable sh404SEF before or after JFBConnect was installed?

Not sure what the answer will be, but we'll do what we can to help you get to the bottom of it.

Thanks,
Alex