The Bug
The Mace can no longer be enchanted with Fire Aspect.
Reproduce
Get a Mace, Anvil and Fire Aspect Book
Enchant the Mace with the book
Observed Result
Nothing happened
Expected Result
The mace would get enchanted
Note
It does still have the tag to be enchanted with fire aspect. This bug also causes the enchanting table to act strange like MC-36937
This may be WAI, as the mace changes in this snapshot have not yet been put in the changelog.