Respawning with the medkit enabled keeps the medic hotkeys information after spawning
Doing ESC + Respawning with the medkit enabled keeps the medic hotkeys information on screen all the time, even after you respawn with a weapon in your hands.
The hotkeys are still displayed on the screen.
Interesingly, this happened only the first time I did that right after joining the server. Further attempts failed to reproduce the problem.