I must admit I appreciate Your reply concerning the credibility of the original poster, but since even Wan Quan - IMO a legend in Chinese aviation photography - questions it I'm almost sure, there is something wrong.
The nose does NOT look like it was photoshopped. You can see the "seam" caused by sharpening, those were common artifacts introduced by compression and enlarging. I suspect there was a sensor or something in there for the little dimple