Fairly early recognisable break with this behavior:
- Console - map ge5map02
- Press J to skip the cutscene
- Run forward to the landing pad. Notice door on left of brick wall ahead of you. Run to it.
- Attempt to use the door
Bump behavior works just fine, but this is a Doom map not a Quake map. The bump constantly retriggers if you keep walking in to it though, so you get spammed use sounds and console message about the door needing a yellow key.