When there is no water in front of a dispenser with a bucket in it, the bucket itself is dispensed. This is very disappointing because if the chunks aren't loaded correctly, you could lose a perfectly good bucket.

What I thought would happen: The bucket would stay in the dispenser unless there is a water block in front of it.

What actually happened: I lost my bucket because it was dispensed into my mob grinder because the chunks were not loaded correctly.

What I think should happen: The empty bucket should stay inside a dispenser until there is a water block is in front of it. A bucket should only be dispensed as an item if placed in a dropper, not a dispenser.