I work with a lot of old photos, I digitize these with a scanner. Usually the background is white, the content are center on the page (Small picture in an A4 page). If a scanned image is to be cropped, I use the "Crop to selection" tool, however, the selection is not visible in the white area. If ended the selection, the selection contour is not visible, only the corner and middle editor points are visible in the selection. This makes the selection tool difficult to use. A dashed line would be better for selection.
*** This bug has been marked as a duplicate of bug 398659 ***