Bug:

Bugged Water placed next to gui block* Does not Update at all, and dissapears after lava goes in contact - with any waterlogged gui block* (eg. sign), it dissapears when waterlogged block is destroyed 

*gui-block - blocks that opens a gui

How to reproduce bug:

1. stand on top, below, or next to the gui-block or where the water is going to be placed
2. crouch and place the water block
3. you should stop crouching and the gui of the block would open, and the water placing sound would be replaced with the sound of the gui opening (or silence if the gui has no sound)