[HL25] Assertion Failure when Changing Player Model to Names with Colon Character

[0Ky]

Description

In Half-Life, when a player changes their model to any name that includes a colon : character, it triggers an assertion failure that affects not only the player making the change but also all other players on the server. This issue is observed both during gameplay and when using the record command for demos as well.

Game Version

Game: Half-Life
Protocol version 48
Exe version 1.1.2.2/Stdio (valve)
Exe build: 01:03:30 Dec  1 2023 (9899)

Screenshot

[RiverHornet3209]

I tested this issue again by changing my model to any name that includes a colon : character (by typing model : in the console, and then typing kill in the console) and I found out that the assertion failure still randomly happens in build 10210.

This issue doesn't seem to happen in the steam_legacy build.