I don't think so. As far as I understood this, the wildcard match was basically considered a no-op (since anything matches, they probably optimized by not even

I don't think so. As far as I understood this, the wildcard match was basically considered a no-op (since anything matches, they probably optimized by not even attempting the match), and so that 21st field was never provided to their Content Interpeter, so it never crashed before. The first time they actually added a non-wildcard match, the Content Interpeter was actually asked to check the 21st field as well, and it crashed because it only had an array of 20 items.