Players are able to levitate rapidly when holding jump button while equipped with an elytra on creative mode.

 Steps to Reproduce:

 1. Create a world

 2. Use an elytra

 3. While gliding hold the jump button

 Observed Results:

 The player are able to levitate just by holding the jump button on     creative.

 Expected Results:
 Player should not levitate despite holding the jump button.