The bug
When using an empty bucket on a bubble column, nothing happens. It's impossible to remove bubbling water using a bucket.
How to reproduce
On a flat area, dig down two blocks
Place soul sand
Place water on top
When the water begins bubbling, try to remove the water using an empty bucket
→ ❌ Nothing happens
Linked issues
is duplicated by 2
relates to 2
Comments 4
Relates to the issue I reported a long time ago, bubble columns break water mechanics completely. having two sources flow into a block above a column doesn't form another water source, it doesn't flow properly and using sponges will leave a few floating water blocks behind, that can only be removed by being replaced by something else.
I just figured out that the bubble column functions like a waterlogged block. Water in waterlogged blocks can only be obtained by pressing the use key on the block's hitbox. Since the bubble column is a waterlogged block with no hitbox. water cannot be obtained. I confirmed that by creating a bubble column scenario (placing soul sand or a magma block under water), and running a command through a repeating command block to set that space to air. This didn't work because when the bubble column is removed, it updates the water, replacing the bubble column every tick. If I run a command to set the space to air while the repeating command block is active, the water and the bubble column are removed since two commands were run. This is the same thing that happens to all waterlogged blocks: the base block is removed with the command, then the water is removed on the second run.
Confirmed for 1.7.0.9 beta.