Recent unintentional 500s on upvotes (and maybe boosts), my bad... sorry!

I was live testing a fix for a different 500 issue and I might have accidentally caused 500s to be generated elsewhere... should be stable now. If the site is acting stupid, there's a 99% chance it's because I'm either live testing a code change or messing with something else in the background.

Sorry for any interruptions and happy holidays!