When multiply ascending Logic error

According Doc/Fetching.md  sample:

have the results sorted by multiple properties with difference
attributes - will default to whatever you set it to:

        NSArray *peopleSorted = [Person
        MR_findAllSortedBy:@"LastName:NO,FirstName" ascending:YES];

        NSArray *peopleSorted = [Person
        MR_findAllSortedBy:@"LastName,FirstName:YES" ascending:NO];

There have same logic error.