Item Stack Throwing From Inventory View Disabled

Put the summary of the bug you're having here

What I expected to happen was...:
In inventory view, selecting an item stack of any amount and then pressing E to close inventory, should cause player to throw the selected item stack forward.

What actually happened was...:
Pressing E closes the inventory, but does not throw the item stack. Items can now only be thrown (as into a lava pit) by being in a hotbar slot and pressing Q until the stack's amount is exhausted. This is doable, but very tedious, compared to throwing the whole stack at once.

Steps to Reproduce:
1. Press E to open inventory
2. Select any stack of multiple items
3. Press E
4. Inventory will close, but item stack will still be in its inventory slot, instead of thrown forward.