Describe the bug
wehn using stack tanks such as tinkers tanks or other mods ones, i used ones from lightmans currency, you can click on the tank ui with the stacked tanks and it fills the stacked ones but only takes one tank amount like i take out 1bucket but both tanks reacive 1bucket each so that i have 2 buckets worth

To Reproduce
Steps to reproduce the behavior:

1. Open backpack
2. install tank upgrade
3. use a stack of tanks from mods like tinkers on the liquid bar itself

Expected behavior
it would extract at all like wehn you try with stacked buckets

Versions
mc 1.18.1
forge 39.0.79
backpack 3.15.9.533

Duplicated #422

actually this one is something I can fix on my side - I am just going to not allow clicking on the bar with stack size larger than 1

fixed in the latest release