When sorting by random with a menu link that has more than 1 category or sub categories selected, duplicates articles appears even though the correct number of is displayed. I think the same problem also exist if you just use 1 category.

This should be a bug right? Cause sorting by random should only randomize the order but not cause duplication to occur. Sorting by other modes do not exhibit the same behavior, only sorting by random does.

Setting fetch items from child category to "No" doesn't help with the duplication as well. Anyone knows how to fix this behavior?