Post to the message queue when resetting a NavHostFragment and waitin…

…g for it to complete. This works around a bug seen in Basecamp where resetting the NavHostFragment and then recreating the Activity to update its theme would cause the app to crash.

turbo/src/main/kotlin/dev/hotwire/turbo/session/TurboSessionNavHostFragment.kt

@@ -47,7 +47,12 @@ abstract class TurboSessionNavHostFragment : NavHostFragment() {
             currentNavDestination.clearBackStack {
                 session.reset()
                 initControllerGraph()
-                onReset()
+
+                if (view == null) {
+                    onReset()
+                } else {
+                    requireView().post { onReset() }
+                }
             }
         }
     }