Cannot speed up after landing on blocks in creative

Summary:
The player cannot speed up after landing on blocks in creative mode unless they change the height.

Steps to reproduce:

1. Switch to creative mode.
2. Turn on flight mode.
3. Land on the block (using the shift button).
4. Try sprinting (using the ctrl+w)
5. Press Spacebar/Shift.
6. Try sprinting (using the ctrl+w)

Observed results:
The player cannot speed up after landing on blocks in creative mode unless they change the height.

Expected results:
The player will speed up like in previous versions after sprinting.