You can continue using items while opening your inventory

The Bug:

You can continue using items while opening your inventory.

Steps to Reproduce:

1. Obtain a shield.

2. Use the shield and at the same time, open your inventory.

3. If you didn’t continue using your shield when your inventory is opened, repeat step 2.

Observed Behavior:

You can continue using items while opening your inventory.

Expected Behavior:

You would stop using items when your inventory is opened.