Survival mode HUD stays even if the gamemode is set to Creative/Spectator

If you started the world/switched to survival, and switch to creative/spectator mode, the survival HUD (the hearts and hunger bar, and armor if equipped) stays on the screen. I have attached a screenshot below. (Ignore the glitched effect status icon, it's from a resource pack).
Expected outcome:

• It should disappear when the gamemode is not in survival/adventure