iOS 26 beta: infinite loop in UISplitViewController logging

In the Console, when presenting my view in a horizontally compact environment, I see:

UINavigationController for collapsing UISplitViewController about to push view controller <UINavigationController: 0x107933c00>

This message repeats infinitely, until the Xcode debugger eventually says:

QUARANTINED DUE TO HIGH LOGGING VOLUME

Of note is that this only occurs in the beta, does not occur when using the iOS 18.x SDK, and only occurs in a compact environment.

EDIT:

This occurs only when setting the secondary column of a doubleColumn UISplitViewController:

      splitVC.setViewController(secondary, for: .secondary)

EDIT 2 and WORKAROUND:

If this action is deferred until after viewDidAppear, it self-resolves:

  public override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    if let deferredSecondaryViewController {
      splitVC.showDetailViewController(deferredSecondaryViewController, sender: nil)
    }
  }