Powerups spawn immediately if no warmup time is set.

[ghost]

When playing matches without warmup (g_warmup time 0) powerups spawn immediatly after the map is loaded. This is changing gameplay very much because the player who spawns next to the powerup has a strong benefit compared to other players. By default there was a delayed spawn time to prevent such unfair situations.
NOTE: I talk about un-modded baseq3, not Defrag or any other mod! That is why I opend this ticket here because I don't know if this new powerup behaviour was intended or not.
Feel free to close this issue if the new powerup spawn rules are intended.

[ensiform]

Looks like that it only takes the spawn time delay into account if you use warm-up in code after warm-up changes.