SetSort only applying last sort in array

SetSort array applies last in array first
```
LocalDataSource(this.applications).setSort([
{ field: 'numRatings', direction: 'desc' }, // secondary sort
{ field: 'stateId', direction: 'desc' } // primary sort
]);
```

I think it should be the setSort[0] as the primary sort, no? From a programming point of view this is accurate, but in a hierarchical point of view it is not.