When a creative mode player is in any creative tab other than Survival Inventory, and drops an entire item stack from their hotbar all at once (using either ctrl + q for >=1 stack items, or q for single stack items), the items will be entirely deleted (not just invisible).

Steps to Reproduce:

1. In creative mode, open your inventory
2. Go to any tab other than Survival Inventory
   (note: Search Items will not work because of the search bar)
3. Do one of the following:
   1. Grab a singular item, and drop it from your hotbar using q
   2. Grab a multi-stack item, and drop it from your hotbar using ctrl + q

Observed Behavior:

The hand animation plays, but the item is deleted entirely.

Expected Result:

The item would drop, just like it does when dropped from the Survival Inventory tab.

Screenshots/Videos:

DropItem.mp4

Old Description:

The bug
Dropping a single item stack from the Creative hotbar by hovering over the item stack in any Creative menu other than the "Surival Inventory" one and pressing the drop key (Q) only deletes the item stack, but does not drop it.

This is closely related to MC-23039 where no item would drop regardless of the stack size.
But it is not related to MC-116618 since that happens for any stack sizes and the cause for it is understood and described in that report.

Video: https://youtu.be/f4ccl-qkLJI

How to reproduce

1. Put any single item in your Creative hotbar
2. Open any inventory tab except "Search Items" and "Survival Inventory"
3. Hover over the item in the hotbar and press Q (drop item key)
   The item is deleted