Yes, I have two others. Johnny's mother Damisi and Sugar's Uncle Shadow. Sugar and Shadow are co-owned by their breeder Robyn Dubbert of Sherwood Basenji's (yodeldogs).
Roscoe does that also. I have a mirrored closet door and he will see himself in the mirror. He'll sit and stare at himself and sometimes reach out a paw and try to touch himself. I think he thinks there's another basenji looking at him.