Actually, this bug happens by just dying normally in a newly created world without having ever set your spawn... You don't need to do the spectator mode stuff to reproduce it. It basically makes survival mode a bit dangerous knowing that dying without using a bed can softlock your world.
Using the /tp command causes your camera to teleport, yet your player model still stays
The name of a command is conventionally one word... renaming it to /spawn point would make the command be called "/spawn"