Crawling mode stays while flying

Steps to reproduce

• Create a world in Creative Mode (preferably Superflat)

• Make a 1-block-tall tunnel in the air

• Place a trapdoor on the bottom side of the top block

• Stand in the trapdoor and flip it to switch to crawling mode

• Start Creative flight

• Crawl out of the tunnel

Expected result

• The player switches to regular Creative flight instead of crawling

• The hitbox is resized to its original size

• The player model is no longer crawling

Actual result

• The player stays in a glitched state of Creative crawling flight

• The hitbox does not resize to its original size

• The player model keeps crawling