ManagedObjectContext notifications not firing

gistfile1.m

//In my app delegate after I setup routes and such:
    [[NSNotificationCenter defaultCenter] addObserver:myTableViewController
                                             selector:@selector(mergeChangesFromContextDidSaveNotification:) 
                                                 name:NSManagedObjectContextDidSaveNotification 
                                               object:[RKObjectManager sharedManager].objectStore.managedObjectContext];

//In myTableViewController:
- (void)mergeChangesFromContextDidSaveNotification:(NSNotification *)notification
{
    NSLog(@"THIS NEVAR HAPPENZ!@#");
    NSManagedObjectContext *mainContext = [self managedObjectContext];
    if ([notification object] == mainContext) {
        // main context save, no need to perform the merge
        return;
    }
    [self performSelectorOnMainThread:@selector(updateContext:) withObject:notification waitUntilDone:YES];
}

- (void)updateContext:(NSNotification *)notification
{
    NSManagedObjectContext *mainContext = [self managedObjectContext];
	[mainContext mergeChangesFromContextDidSaveNotification:notification];
    [self.tableView reloadData];
}