Like so - in the first sceenshot, I selected the jeans, pressed Escape to exit, and the Jeans’ information stayed on screen.
Unselecting any item from the pick-up list empties the information window itself, but leaves the rectangular frame of it in place.
Entering a menu such as the Inventory does clear it, but still.
Is this fixed in the Windows Nightly builds, or should I just use Cygwin? This is really annoying.