Inventory remains pushed over once effect has worn off.

If the inventory is left open when a potion effect wears off the it remains pushed over as if the affect balloon was still there until re-opened.

What I excepted:
When the affect wore off the inventory should have re-centered.
What happened:
The inventory remained pushed over.

To reproduce:
1. Obtain a splash potion (Regeneration/Poisen II (0:16) are the quickest).
2. Open the inventory and wait for it to wear off.
3. The Inventory remains pushed over when it should re-center.