Items vanishing when moving into containers whilst a hopper is as well.

If a hopper is moving the same item as the one you are quick moving (shift + left click) items into the chest it can sometimes vanish

Occurs in Worlds & Realms.

Steps to reproduce.

• Have the same item in both your inventory a chest
• Have a hopper move the items from the chest to another chest
• Shift Click the items between your inventory and the chest that items are being moved to by the hopper

Observed Results

• Sometimes you end up with less items then when started

Expected Results

• You should end up with the same number of items that were in both container & inventory