"held_item_scale" affects main hand items in first-person

If you added "held_item_scale" to player.entity.json, and then change it's value to greater than 1.0, the size of items in first-person will also increased, this seems to only affects main hand items, offhand items are not affected and shows with the correct size.

Steps to reproduce:

1. Download and activated the attached resource pack, it include player.entity.json with "held_item_scale" set to 2.0

2. Join into any worlds, then give yourself 2 items (totem of undying, for example), put it in your main hand and offhand

3. Change your perspective to first-person

4. Observe

Expected results:
Both items in main hand and offhand are not affected by "held_item_scale.

Observed results:
Items in main hand are affected by "held_item_scale", while items in offhand are not affected.