[Regression] Rendering FOF wall textures underwater

I noticed this first myself in my VS builds, but thought it was just a VS/clang thing. But someone on discord downloaded the GitLab pipeline builds, and witnessed the same:

https://cdn.discordapp.com/attachments/357945601855586304/1209921532755709992/srb20743.gif?ex=65e8ae3c&is=65d6393c&hm=0774b6b2e29fc7cf2a5aa60db07e9c1f5eb2f827acdfb9d5522acfb71db05f71&

mentioned in issue #1207 (closed)

Probably related to #1207 (closed)

changed title from [Regression] Rendering upper textures underwater to [Regression] Rendering FOF wall textures underwater

mentioned in merge request !2373 (merged)

closed with merge request !2373 (merged)

mentioned in commit 8ccc4d60