While having a bucket in your hot bar, swiping up while scrolling to the bucket of water to water log the slab. But the bucket is still full and if you remove the water the bucket won't get it. Kind of like a "ghost" water
Attachments
Comments 7

You are correct. That does indeed appear to be a ghost water source block. But to be sure, place a boat in the water (if it disappears when you do so, it is a ghost source. If not carry on.) If it is a ghost water source, the boat should behave as if there is no water there. If you then get into the boat, the boat will float. This is because rideable entities are handled by the server, until they are ridden by the player, then the client handles them. This handling behavior was most likely implemented to patch a bug in the early versions of minecraft that allowed for client sever desyncronization. This bug is demonstrated in the video below by Docm77:
You are correct. That does indeed appear to be a ghost water source block. But to be sure, place a boat in the water (if it disappears when you do so, it is a ghost source. If not carry on.) If it is a ghost water source, the boat should behave as if there is no water there. If you then get into the boat, the boat will float. This is because rideable entities are handled by the server, until they are ridden by the player, then the client handles them. This handling behavior was most likely implemented to patch a bug in the early versions of minecraft that allowed for client sever desyncronization. This bug is demonstrated in the video below by Docm77:
Please comment or update the Affected Versions field if you can reproduce this in the current version.
Please comment or update the Affected Versions field if you can reproduce this in the current version.
Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki