Describe the bug
When shift-clicking a stack into the compacting chest, and that item already has a stack of those items in there (which is < 9), the chest doesn't compact those items, leaving a stack of >= 9 items in the chest. "Picking up" the stack and dropping it back in manually (or putting other items in) updates the chest and makes it compact the items.

To Reproduce
Place and open a compacting chest. Place an amount of items in there which is less than 9, e.g. 5 iron ingots. Now shift-click a stack of that item into the chest which makes the total item count in the chest be >= 9, at which point it should compact the items, but doesn't (e.g. shift-click 30 more iron ingots).

Expected behavior
The chest is expected to detect the stack update and begin compacting the items into blocks (in the example of 5+30 iron ingots, result in 8 ingots and 3 blocks).

Mod version
spectrum-1.2.7-1.18.1-midgame8

Screenshots