Lava / water / powder snow bucket desync when using it while rapidly turning

The bug

A desync can happen when rapidly turning and trying to use a lava, water, or powder snow bucket. The bucket might appear full but you placed lava / water / powder snow; or the bucket might appear empty but you did not place lava / water / powder snow.

How to reproduce

1. Give yourself a lava bucket
2. Spin around (move mouse) standing on a flat plain and repeatedly try to put down and pick up the lava in the bucket
   → About 1 in 10 times, the client and server desync (e.g. I see the lava on the ground, and also in my bucket, until I use the bucket again or move it in my inventory; or I see no lava on the ground and my inventory displays the bucket as empty, but I actually still have lava and can place it).

Code analysis

Based on 1.12.2 decompiled using MCP 9.40

Using a bucket calls server-side net.minecraft.item.ItemBucket.onItemRightClick(World, EntityPlayer, EnumHand) which calculates the position itself and therefore can cause a desync. Ideally the position for picking up liquids and placing them should be calculated client-side only and then the server should only validate it and use that position.

Examples