he/him - Writing code and sometimes words
I'm going to mark this as BY_DESIGN because I've gave it some thought, and I think I single piece of black stained glass is "canon". When Zombies don't burn in sunlight, only one block is required to be placed above them.
REPORTED RESOLVED BY_DESIGN
Fixed in 0.5.1
REPORTED RESOLVED FIXED
Fixed in v1.0.1. Probably should have said that before.
I didn't think it was possible for it to thunder and not storm, so I didn't add a case for it. After a bunch of game-time being confused, I finally did
/weather clearand stopped taking damage.
Make the default case (clear skys) apply for only thundering as well. Actually, make it a catch all weather case.
I believe this is an issue with putting the spawner in the minecart. We copy the SpawnData id NBT but we don't copy the SpawnPotential NBT.