Bukkit

Fixed issues with fish buckets and 1.13 API. Note: This version is no longer backward compatible for earlier versions of Spigot server.

• Blockfade issues with melting ice have been resolved.
• Using fish buckets to place source blocks has been resolved.
• No longer cancelling the emptyBucketEvent means the event finishes naturally, and there is no need to replace the itemInHand ItemStack.