Hey guys, so I've got my NSFetchedResultsController working fine under the 3.1 SDK, however I start getting some weird errors, specifically in the delegate methods when I try it under 3.0. I've determined that this is related to the NSFetchedResultsControllerDelegate methods. This is what I have set up.

The inEditingMode stuff has to do with the way I've implemented adding another static section to the table.

- (void)controllerWillChangeContent:(NSFetchedResultsController*)controller {
    [self.tableView beginUpdates];
}


- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type{
    NSIndexSet *sectionSet = [NSIndexSet indexSetWithIndex:sectionIndex];

    if(self.inEditingMode){
        sectionSet = [NSIndexSet indexSetWithIndex:sectionIndex + 1];
    }

    switch (type) {
        case NSFetchedResultsChangeInsert:
            [self.tableView insertSections:sectionSet withRowAnimation:UITableViewRowAnimationFade];
            break;

        case NSFetchedResultsChangeDelete:
            [self.tableView deleteSections:sectionSet withRowAnimation:UITableViewRowAnimationFade];
            break;
        default:
            [self.tableView reloadData];
            break;

    }
}


- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath{
    NSIndexPath *relativeIndexPath = indexPath;
    NSIndexPath *relativeNewIndexPath = newIndexPath;

    if(self.inEditingMode){
        relativeIndexPath = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section + 1];
        relativeNewIndexPath = [NSIndexPath indexPathForRow:newIndexPath.row inSection:newIndexPath.section + 1];
    }

    switch(type) {
        case NSFetchedResultsChangeInsert:
            [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:relativeNewIndexPath] withRowAnimation:UITableViewRowAnimationFade];
            break;
        case NSFetchedResultsChangeDelete:
            [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:relativeIndexPath] withRowAnimation:UITableViewRowAnimationFade];
            break;
        default:
            [self.tableView reloadData];
            break;
    }
}


-(void)controllerDidChangeContent:(NSFetchedResultsController *)controller{
    [self.tableView endUpdates];
}

When I add an entity to the managed object context, I get the following error:

Serious application error.  Exception was caught during Core Data change processing: *** -[NSCFArray objectAtIndex:]: index (1) beyond bounds (1) with userInfo (null)

I put a breakpoint on objc_exception_throw, and the crash seems to be occuring inside of controllerDidChangeContent.

If I comment out all of the self.tableView methods, and put a single [self.tableView reloadData] inside of controllerDidChangeContent, everything works as expected.

Anybody have any idea as to why this is happening?