Steps to Reproduce:
Have a librarian villager.
Inspect its trades. There is a chance for the enchanted book offered by it to have the Wind Burst enchantment.
Observed Results:
Wind Burst is available on enchanted books sold by villagers.
Expected Results:
Wind Burst is only obtainable from ominous vaults and thus cannot be on enchanted books in trading.
Note: If Wind Burst is obtainable through villager trading, it might also be obtainable in loot outside ominous vaults, but I have not checked this.
Can confirm, relates to MC-269976.