If the fix is available they need to publish it!
I have an undefined variable allElementData. Searched the fabrikar.com forum. Same type of problems turn up several times over several months but no answer or fix given.
just to be clear - you dont need to pay to get the bug fixes - the code in the SVN is available to everyone and releases are released to everyone at the same time.
Subscription gives you priority support, which will get any issues you have dealt with before non-subscriber issues