When you try to take water through a hoed block hole, it bugs out and starts doing strange things.
Firstly, hoe some dirt. Then have some stone half blocks by the hoed dirt, and put water under them. then the hoed plot creates a little hole, and you can see the water through there. Now try picking it with the bucket. Everything is alright. Put the water back and try picking it up while you are crouching. It bugs out. The view of how the set up works will be in the attachments.