[Bug] Right clickig a bewing stand moves items around

[12xx12]

Client version: 1.8.2 and 1.13.1 (other versions to be tested)
Cuberite Commit id: edb3c78

Expected behavior

no item movement when right clicking breweing stand

Actual behavior

when right clicking a brewing stand the whole inventory gets moved one item to the right. this is only possible if the server was freshly joined and theyou haven't right clicked any brewing stand. this is just a visual bug. the istems are still present at the position they shuold be at the server just displayed wrongly. Although the movement is just a visual bug. I din't manage to loose oder duplicate any reccources. If the players inventory slot gets updated the item sotored on the server is displayed again.

this seems to be a bugin the breweing stand GUI server side

Steps to reproduce the behavior

• rejoin server
• build brewing stand
• have at least one item in inventory to see the change
• right click brewing stand

Server log

Relevant part of server log

[tigerw]

funky xD

[12xx12]

I think the underlying problem is that the brewing stand always moves the items saved on the server one to the right in the window representation this should be fixed quite easily I think. Gonna do that tomorrow

[pwnorbitals]

@12xx12 have you had time to look at this issue ?