Find or create small lake with lilypads.
Get one water bucket.
Make sure you are not on top of the lilypad. You can stay build 1-2 blocks pillar up and stay on it.
Right click with the Water Blucket on top of the lilypad.
The Water appears for 1 Second and Disappears.
The bucket is Empty now. Right click with the Empty Bucket somewere on the ground and see it's not a glitch and the water appears again, the water removed total.
The bug works too on the side on lilypads;
(I don't know, I don't tested the bug with dispensers placing water, so I can't tell this will work / not work with dispensers)
Linked issues
duplicates 1
Comments 2
Yeah, but I think it's not duplicade with these bugs 'With Tall Grass, Ect.'
The water is actually placing on the opposite side of the lily pad.