Items in the off-hand are not visible when holding the map in first person

Summary:
When a player has an item in the off-hand (Nautilus Shell, Arrows, Firework Rocket, Totem of Undying), and there is a map in the mainhand, the map is held with two hands, and the item in the off-hand is not visible (in the first person). The exception is the map (due to the fix of MCPE-24667) and the shield.

Steps to reproduce:

1. Equip an item in your off-hand (Nautilus Shell, Arrows, Firework Rocket, Totem of Undying).
2. Take a map to your mainhand.
3. Switch to first person view.

Observed results:
The off-hand holds the map, not the items you took.

Expected results:
Items in the off-hand will be visible as if holding a map or shield.

Screenshots: