The Reverse selected images command
doesn't work properly
When you select a group of thumbnails, the Reverse selected command
should reverse the order of the selected images. However, it doesn't
reverse them. it just takes the left-most image and puts it at the right
of the row. This wasn't the behaviour in V4.5.
Using the Reverse selected command when no thumbnails are selected
works correctly. It reverses the order of the entire list.