Whenever a bow enchanted with mending receives XP while it is in the process of drawing (the arrow is currently moving back in the bow), the fully drawn animation ends with the bow and no arrow.

How to reproduce:
Acquire a bow enchanted with mending.
Spawn or find XP
Start drawing the bow and walk into it.
If the XP is absorbed while in the process of drawing, the animation finishes without an arrow.

This doesn't not work before drawing or while fully drawn, it only affects during the process of it.

The picture attached is a screenshot of a bugged fully drawn bow.