Player can sneak and auto-sneak in spectator mode

Summary:
Player can sneak and auto-sneak in spectator mode.
If the player is within a gap of less than 1.8 blocks, he will automatically start sneaking in the spectator, which does not make sense. I expect that in spectator the player will not sneak like in Java.

Steps to reproduce:

1. Build the space into 1.8 blocks.
2. Switch to spectator mode.
3. Enter it.

Observed results:
The player automatically sneaks if the space is less than 1.8 blocks.

Expected results:
The player will not sneak in spectator mode.

Video:
auto-sneak in spectator mode.mp4