I believe we have all experienced this one so I'll keep this short.
So we have all been in that situation where we just spawn and we get killed by someone who is nowhere near us. In fact he might even be at the other side of the map, and have no way to shoot our spawn. Despite that we can still get killed by that person.
This happens when someone shoots a corpse just before the dead player respawns. For some reason the dead player will receive the damage just as they spawn.
I do not expect it to be fixed but I still think others should know why it happens.