Fix no content message incorrectly appearing on profiles

Caused by a spurious appearance transition from embedChild

Tusker/Screens/Profile/ProfileViewController.swift

@@ -161,7 +161,15 @@ class ProfileViewController: UIViewController, StateRestorableViewController {
             // if old doesn't exist, we're selecting the initial view controller, so moving the header around isn't necessary
             new.initialHeaderMode = .createView
             new.view.translatesAutoresizingMaskIntoConstraints = false
-            embedChild(new)
+            addChild(new)
+            view.addSubview(new.view)
+            NSLayoutConstraint.activate([
+                new.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
+                new.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
+                new.view.topAnchor.constraint(equalTo: view.topAnchor),
+                new.view.bottomAnchor.constraint(equalTo: view.bottomAnchor),
+            ])
+            new.didMove(toParent: self)
             self.currentIndex = index
             state = .idle
             completion?(true)