Fix #1370

P_SpawnMobjFromMobj takes scale into account... if the object has a scale anyway. The code for spawning the flame was inside P_SpawnMobj, so the object always had a FRACUNIT scale when it spawned.

Just moved it to a different switch case to fix it, albeit this means the flame won't spawn automatically if spawned without a mapthing.

Nothing to do with the map btw. :V