Permanently active first slot of the hotbar without the ability to select another item

Description:

When transferring an item from inventory to storage, the first slot of the hotbar is permanently activated. Because of this, you cannot immediately select the desired item, and sometimes the item from the first slot is thrown out.

How to repeat this error:

Step 1. Grab a few items in survival or creative mode. Be sure to put the item in the first slot of the hotbar.

Step 2. Open any item storage. Try to transfer any item (except the first slot) to the chest. {You will not be able to do this, and you may also drop the item from the first slot or accidentally leave it in storage}

Step 3. Try to move the item from the first slot to any other slot (or open the storage with an empty first hotbar slot). Open the chest and try to transfer any item to the storage. {everything will be successful without an active first slot}

Expected result:

In any of the cases of transferring items, the first slot will not be constantly active, and you can also immediately transfer the desired item to the chest / barrel / shulker.

Observed result:

The first slot of the hotbar with the item is constantly active. It is also impossible to select the desired item (without moving the item from the first slot).

Consequences of this error:

This error is very annoying for the game user (it interferes with enjoying the gameplay), and also slows down the process of transferring things (especially from different storage blocks). This will have a negative impact on the activity of the players.