Affects Version/s: Minecraft 1.12, Minecraft 1.12.1 Pre-Release 1, Minecraft 1.12.1
Fix Version/s: Minecraft 1.13.1
Wither name don't change after changing language.
Steps to reproduce:
1. Change language to English.
2. Summon a wither.
3. Change language.
4. Summon a another wither.
This can be fix after re-enter the world.
Sorry for my bad English