Quite often actually.
Black people clowning other Black people who are into books/studying because "that's white people stuff"
Black people not wanting for their kids/younger brothers/sisters to hang out with other Black kids
Black people saying "well colonization wasn't that bad, at least stuff was getting done"

But I don't know for sure that I would call it self-hate, because hate is conscious. I think white supremacy is so potent that it becomes "normal" for some to have this kind of atitude, because they don't have time/will/ressources to study against it. I think we're all familiar with the dolls experiment :
I wouldn't call these poor kids answers "self-hate", that would put too much of a burden on them. It's more the potency of white supremacy that moulds the brain from a very early age, and it's actually a conscious effort to go against it. Which is what some activists/scholars/intellectuals call "decolonising the mind" (shouts to Ngugi Wa Thiong'o)