IssueTracker

Component used: Navigation Version used: 2.6.0-alpha05 Devices/Android versions reproduced on: all

Hi, If we have a NavHost like this:

val route = "home?opt={argOpt}"
NavHost(navController = navController, startDestination = route) {
composable(
    route = route,
    arguments = listOf(
       navArgument("opt") {
          type = NavType.StringType
          nullable = true
          defaultValue = null
       },
     ),
  )
}

The following methods don't work:

navController.getBackStackEntry("home") // or "home?" or "home?opt=" <- Lead to crash
navController.popBackStack("home", false) } // or "home?" or "home?opt=" <- Ignoring popBackStack to route home as it was not found on the current back stack

However, if we put a default value different than null, it's working.