Swimming in first person no longer hides your hands

The Bug:

Swimming in first person no longer hides your hands.

In 18w07a, when the ability to swim was first introduced, swimming caused your hands but not your held items to be hidden. I more modern versions of the game, your hands are always visible while swimming.

Steps to Reproduce:

1. Begin swimming in first person.
2. Observe if your hands are visible.

Observed Behavior:

Swimming in first person no longer hides your hands.

Expected Behavior:

Swimming in first person would hide your hands.