UISearchBar in TableViewController moves up after segue and changes rotation

Question

UISearchBar in TableViewController moves up after segue and changes rotation

I have a master-detail application where I use UISearchControllerto filter cells in UITableViewController(master). I have a problem with extinction UISearchBarafter segue. Steps to reproduce the problem:

Running the application in portrait mode
Tap SearchBar and enter
Touch one of the cells in the TableView and go to the detailed controller.
While the controller is in detail, change the orientation of the device in landscape mode.
Go to the wizard. SearchBar now partially hides behind the navigation bar, even after you switch to portfolio orientation.

My main MWE controller:

import UIKit

class MasterViewController: UITableViewController, UISearchResultsUpdating {

    var data = ["First", "Second", "Third", "Fourth"]
    var searchController: UISearchController = UISearchController(searchResultsController: nil)

    override func viewDidLoad() {
        super.viewDidLoad()
        configureSearchController()
    }

    override func viewWillAppear(animated: Bool) {
        self.clearsSelectionOnViewWillAppear = self.splitViewController!.collapsed
        super.viewWillAppear(animated)
    }

    // MARK: - Search Controller

    private func configureSearchController() {
        searchController.searchResultsUpdater = self
        searchController.dimsBackgroundDuringPresentation = false
        searchController.hidesNavigationBarDuringPresentation = false
        searchController.searchBar.sizeToFit()

        self.definesPresentationContext = true
        self.tableView.tableHeaderView = searchController.searchBar
        self.tableView.contentOffset = CGPoint(x: 0, y: searchController.searchBar.frame.height)
    }

    func updateSearchResultsForSearchController(searchController: UISearchController) {
    }

    // MARK: - Segues

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if segue.identifier == "showDetail" {
            if let indexPath = self.tableView.indexPathForSelectedRow {
                let content = data[indexPath.row]
                let controller = (segue.destinationViewController as! UINavigationController).topViewController as! DetailViewController
                controller.text = content
                controller.navigationItem.leftBarButtonItem = self.splitViewController?.displayModeButtonItem()
                controller.navigationItem.leftItemsSupplementBackButton = true
            }
        }
    }

    // MARK: - Table View

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return data.count
    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
         let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath)

        let content = data[indexPath.row]
        cell.textLabel!.text = content
        return cell
    }

}