The diverter on my tub spout was completely stuck/seized so I'm in the process of replacing it - mostly following this video. The one in the video (and similar ones) had a screw holding it together but mine did not, so I think you're supposed to be able to just turn the tub spout and it should come off. However, mine was completely stuck together so as I turned it it left behind scratches on the copper tube - you can see it almost looks like a thread since I was turning it as I pulled it off.
I'm about to put a new tub spout on, but should I be worried about the scratched pipe? Is there anything I should do before I put on the new tub spout?