Unvanquished fonts issues

[David Heidelberg]

With recent trace I always get into this.

See the black font. Also previously made trace used in our CI had also issues with sometimes randomly mangling font textures.

MESA_GL_VERSION_OVERRIDE=3.2 ./apitrace trace -o my_game.trace unvanquished

The game itself renders the fonts textures correctly.

Trace (brotlified 🤜 ): https://download.ixit.cz/unvanquished-brotli.trace