Django query solution to replace `values_list('repo__name')`.

.py

# IMO, This is the best.
def contributor_repo_names(self, organization):
    repo_ids = Commit.objects.filter(
        repo__in=organization.repos.all(),
        committer=self
    ).values_list('repo_id', flat=True).distinct('repo_id')

    return list(
        GitRepo.objects.filter(repo_id__in=repo_ids).values_list('name', flat=True)
    )

# IMO, This is not as good as the previous one.
def contributor_repo_names(self, organization):  
    return list(Commit.objects.filter(repo__in=organization.repos.all(),
                                      committer=self)
                    .values_list('repo__name', flat=True).distinct('repo_id'))