Currently working on a Grecian-inspired village some chunks away, got bored, and went exploring. Came across this WEIRD white pumpkin near another village. Selecting it only gives me a normal pumpkin and it's only white on this specific block, as you can tell the pumpkins around it are orange.

Yes, white pumpkins exist in real life, but for Minecraft this is strange especially when it's only white on that ONE block. Can anyone explain this?