[AUCTeX] C-` shows hyperref warnings as errors

[David Reitter]

I wonder why C-` shows a warning as an error.
I'm using hyperref, which unfortunately brings up a lot of warnings of  
this form:

! pdfTeX warning (ext4): destination with the same identifier  
(name{page.i}) ha
s been already used, duplicate ignored

When this happens, LaTeX claims there to be plenty of errors in the  
compile log. So I press C-`, and get this:

ERROR: pdfTeX warning (ext4): destination with the same identifier  
(name{page.i}) ha

--- TeX said ---
s been already used, duplicate ignored
<to be read again>
                   \penalty

So it's turned a warning into an error!
TeX-debug-warnings is off.

Does hyperref maybe output something that `TeX-parse-error' can't parse?
I tried playing around with the regular expression in that function,  
but haven't found a solution.

Thanks for any help.