No way to deselect items in the inventory

Whenever I click on something in my inventory, there is no way to deselect the box that appears around it, even in empty slots. Instead, I have to either exit the inventory or move then item and then move it back if I decide I do not want to move it anymore. This is really annoying for moving things around in my inventory. 

Steps to Reproduce:

-Go into inventory

-Click on items

-Notice that the selection box cannot be deselected

-Move two items to remove this box

Observed Results: The box remains clicked until you click on something else to perform a move of items. 

Expected Results: Clicking on this box again should cause it to fully disappear and deselect the item.