Player starts sneaking when dismounting if "Sneak" is set to "Toggle" in accessibility settings

The bug

If "Sneak" in the accessibility settings menu is set to "Toggle", the player starts sneaking when dismounting an entity, such as a boat, a minecart, or a horse.

To reproduce

1. Set "Sneak" to "Toggle" in the accessibility menu

2. Make sure that you are not crouching

3. Mount any mountable entity, such as a boat

4. Press sneak
   → ❌ The player starts sneaking

Video