A player sneaking in lying position is still visible on the locator bar

When a Player is behind a wall in a lying position (in a 1 block high gap) and they hold down sneak, their name disappears, but the locator bar still shows them.

Steps to reproduce:

One player hides behind a wall and goes into a lying position (e.g. with trapdoor) and holds down sneak button

The other player is on the other side of the wall.

Expected Result:

Both player name and locator bar dot go invisible

Actual Result:

Only player name goes invisible and the locator bar still shows their dot.