Tempered dark glass does not cull against itself

[muzikbike]

Minecraft Version: 1.19.2

Forge Version: 43.2.0

Mod Version: 1.7.14

Single Player or Server: Yes

Describe problem (what you were doing; what happened; what should have happened): Place dark tempered glass next to each other. Unlike with vanilla glass, no culling happens, resulting in undesirable inner faces.

Log file link: No

Video/images/gifs (direct upload or link):

[muzikbike]

The same is true of terra glass: