Describe the bug
When using experience pump upgrade options it won't take player's exp while storaging in tank upgrade.

To Reproduce
Steps to reproduce the behavior:

1. Open backpack with experience pump upgrade and tank upgrade while having some exp in player
2. Click on "Store X levels" or "Store All Experience"
3. Tank upgrade fills with EXP but EXP also stays with player

Expected behavior
EXP moves from player to tank upgrade and is no longer on player

Screenshots
Before pumping (level 21):

After pumping (level 21 in tank and on player)

Versions
Tried with Sophisticated backpacks 1.21.3.20.18.1117 and 1.21.3.20.26.1151 with neoForge 21.1.73

I am unable to recreate so I guess you have another mod in the pack there that's messing with experience as well. If you can figure out the smallest modpack required to recreate I can check with that mod (those mods) if there's anything wrong that I should fix.