flutter location , Unhandled Exception: PlatformException(PERMISSION_DENIED_NEVER_ASK, Background location permission denied forever

I've been working on this issue and I discovered that the problem is when you use location.enableBackgroundMode() then choose always when you hit back first time it throws an exception and isBackgroundModeEnabled will be false too "despite the backgroundmode is enabled in system" and you have to restart the app to check if background mode is enabled correctly.

but, I've found that calling location.enableBackgroundMode() again is solving the issue too and it really doesn't ask for enabling background again but it somehow make isBackgroundModeEnabled return true value. Here's my fix code:

Future<bool> enableBackgroundMode() async {
bool _bgModeEnabled = await location.isBackgroundModeEnabled();
if (_bgModeEnabled) {
  return true;
} else {
  try {
    await location.enableBackgroundMode();
  } catch (e) {
    debugPrint(e.toString());
  }
  try {
    _bgModeEnabled = await location.enableBackgroundMode();
  } catch (e) {
    debugPrint(e.toString());
  }
  print(_bgModeEnabled); //True!
  return _bgModeEnabled;
 }
}