Ancient Cities generate Lava in Water

Expected Results

An Ancient City generating with Lava that turns into Obsidian once inside Water.

Observed Results

An Ancient City generating Lava in Water while being waterlogged.

Steps to reproduce
-Play Minecraft Preview version 1.18.30.33.

-Create world with seed: 1064444120887942471

-Teleport to coordinates: -744, (y?), -1816