Allow player respawning in single player without MAPINFO

[Beed28]

Currently, my mod Contra Doom is shackled by the fact that it needs it's own MAPINFO so that the player can freely respawn in single player. There is no other way around it. The MAPINFO's presence breaks MAPINFO definitions in other map packs, particularly DUMP, and necessitating separate MAPINFO patches for TNT: Evilution, Plutonia, and Heretic.

If there was something that allows me to enable player respawning in single player without having to redefine every single map, it would be very much appreciated!