when trading with villagers lets say you trade 1 emerald for 2 redstone but if you put 5 in and shift click you get 2 redstone if you try trading again on the same page it will delete all the redstone you got

Put the summary of the bug you're having here

What I expected to happen was...:

i could trade mulitabul bla bla blas
*What actually happened wasnot that
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...