Free xp with sell sticks

[AlbaAurDraconis]

Server this occurred in (in the player tab list):

main

World this occurred in (in the player tab list):

main

The coordinates or a notable location at/near the glitch (if applicable):

n/a

My Minecraft username:

AlbaAurDraconis

What I was doing when the glitch occurred:

tried disenchanting a sell stick

What happened:

it worked and i got xp

What was supposed to happen:

Probably not suppoused to get free xp

Any additional details that should be noted (pictures/videos of it happening, etc):

n/a

[JasonHorkles]

Already brought up with plugin author, may or may not be solution in future