iOS7 TableView layout bug with UITableViewWrapperView

When working with a special problem with iOS7 Beta5, my cells in one of my tableviews is not right.
All cells' position y in screen is much higher than it should be.
Than I find that 'UITableView now initially has a subview (UITableViewWrapperView), it's allUITableViewCells' superview.'
And after tableview's initialization, I print UITableViewWrapperView

po [_messageTableView.subviews objectAtIndex:0]

<UITableViewWrapperView: 0x1814a690; frame = (0 -117; 0 117); autoresize = W+H; layer = <CALayer: 0x1814a660>>

so the following code can fix this problem

for (UIView *subview in tableView.subviews)

    {

        if ([NSStringFromClass([subview class]) isEqualToString:@"UITableViewWrapperView"])

        {

            subview.frame = CGRectMake(0, 0, tableView.bounds.size.width, tableView.bounds.size.height);

        }

    }

Done!
Have fun on the way fighting with new changes and bugs of iOS7 :).

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