[MC-132648] Some Fences no connect between each other when you upgrade a 1.12 map to 1.13

When you load a 1.12 map and you upgrade in 1.13, some fences not connect with the sides blocks.

Attachments

Possibly cloning MC-130140?

Yeah, your right...sorry 🙂

I think, if your load a game with a previous snapshot with this bug. The bug stay. I try to take a backup to prove my theory.

Does this happen when upgrading from 1.12.2 to 1.13-pre6? If so, please attach the world here so we can reproduce the issue.