stat.jump sometimes increases when getting levitation from the ground

Fairly simple,

When standing on the ground, and giving yourself levitation, (tested with level 2) your jump stat increases by 1.

Steps to reproduce:

1. set up a repeating command block with

   /effect @a levitation 0

2. set us a scoreboard objective with criteria stat.jump and set it to the sidebar
3. give yourself levitation a number of times and see that your score increases