No duplicate project label check when creating a group label
From @engwan's comment in !45122 (merged):
I just noticed that we actually have this validation for project labels:
def title_must_not_exist_at_group_level
return unless group.present? && title_changed?
if group.labels.with_title(self.title).exists?
errors.add(:title, :label_already_exists_at_group_level, group: group.name)
end
end
But I think we don't validate when creating at the group level so we actually could still end up with duplicates.