It is unable to close the inventory when binding the "Open/Close Inventory" key to a mouse button

The bug:

it is unable to close the inventory when binding the "Open/Close Inventory" key to a mouse button.

Steps to reproduce:

1. Bind the "Open/Close Inventory" key to a mouse button like Button5.

2. Use Button 5 in game to open the inventory.

3. Try to use Button 5 again to close the inventory.

Expected result:

The inventory will be closed.

Actual result:

The game will do nothing.