When I do my bodywork I take a GREAT deal of time making sure this kind of work is eliminated. I get it, edges catch everything and take quite a hit when skimming and blocking. This area of this car shouldn’t have gotten primer let alone color coat in this condition.
PLEASE, if you’re having a car restored by someone else, insist on inspecting the car before the finish coat is applied. This kills an otherwise good looking car.
When looking at a car to buy, don’t be shy about peeling back the rubber in a few spots. You’ll be amazed at this little detail left behind. I’m sure the boys expected this to be hidden. They should have fixed it.