Also turtles that have hatched on a specific beach just hang around, never going off into the ocean. My beach is now overrun with adult turtles. I do remember in the earlier snapshots that turtles would head off into the ocean and as I mentioned before, baby turtles headed straight for the water as soon as they hatched.
i put this as a separate bug as the baby turtles had been seeking water when they hatched but on 1.13 Pre-1 they stopped. It is an expected behaviour that baby turtles should seek water and therefore I feel it is a separate bug from dolphins, guardians etc.
As one of the early bug reporters in this issue, I would like to say that as far as I can see in 18w22c it appears to be fixed in single player. I reproduced the exact same issue and the water filled up the hole. There may be a similar bug thats not resolved, but the one I submitted is. Thanks.
Confirming, with image, that issue persists and is repeatable in 18w19a
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If I pick up water in a bucket that has a water block beneath it, it leaves a hole in the water body - ie the neighbouring water blocks don't flow in to fill it. It works as normal if there is a solid block beneath it.
I wish this bug was fixed. When the baby turtles first came out they headed for the water so one was able to build a scute farm. Now they just hang around and make not attempt to get into the water. Not the mention the myriad turtles now hanging about. If it worked once why cannot it work again?