aria-labelledby pointing to an element with aria-hidden=”true”

I have a question to the group regarding aria-labelledby pointing to an element with aria-hidden=”true”.

Is that an allowed relation according to http://www.w3.org/TR/wai-aria/ ?

Also, http://www.w3.org/TR/wai-aria-1.1/#aria-hidden and http://www.w3.org/TR/wai-aria-1.1/#aria-labelledby give no clue about this so it seems to be OK.

I do not speak of better alternatives for respective use cases, just if the specification explicitely leaves that as a possible option.
Screen readers (Jaws) currently read information in nodes with aria-hidden=”true” associated with aria-labelledby when respective elements with that relation are focused.

Best Regards
Stefan