Touching an end portal while in spectator mode teleports the player when they exit spectator mode

How to replicate:

• Open a creative world and build an end portal

• Enter spectator mode

• Touch the end portal

• Move away from the end portal

• Leave spectator mode
  You will be teleported to the end anyway

Expected behavior:
You wouldn't teleport to the end since you aren't inside an end portal

added note: this doesnt appear to happen to nether portals