I can only view an image in the debugger once

Steps to reproduce:

To view the QImage as an image, right-click the QImage row in the locals -> Change Value Display Format -> Change display "Separate Window" -> expand the image row in the locals -> a new window should appear with the image contents

Once you expanded it the first time and wait for it to load, after closing the window there does not seem to be a way to display it again.