I recently had the opportunity to restore an old photo on another forum. If anyone is interested, here’s a link to the thread in POTN.
This photo required extensive use of the repair/clone tool and mostly I am very impressed and happy with the functionality of the tool. However the use of the tool near a point of intersection between a lighter tone and a darker tone sometimes leaves a smudge behind. In the picture the lady’s knee has a big spot on it. This spot is right at the intersection of her arm(light tone), her knee(middle tone), and the black couch(dark tone). I tried moving the source spot around to different locations and varying the feathering; I even tried moving the receiving spot slightly, both in clone and repair modes without success. The latter try worked best but it would miss the original spot if moved too far and still left the smudge if not moved far enough. Very finicky. I’m not sure that I would call this a bug in such a fantastic tool but it is certainly a frustration.
There is already a thread concerning the fact that the repair/clone tool also doesn’t work well near the edges of the frame, so I will only mention it in passing. I ran into this problem too and had to crop more of the photo than I wished to.
Has anyone found a suitable workaround to either/both of these problems?