Both pages are rebuilding when there is a transition between pages

[Alperen Ekin]

Bug report

Describe the bug
In WoltModalSheet when there is a transition from one page to another, both of the pages are rebuilding.

Steps to reproduce

For example in Coffee Maker App:

return [
        AddWaterDescriptionModalPage.build(
          onNextPage: goToNextPage,
          onCancelPressed: () {
            model.onCoffeeOrderStatusChange(coffeeOrderId);
            Navigator.pop(context);
          },
          onClosed: Navigator.of(context).pop,
        ),
        WaterSettingsModalPage.build(
          onBackButtonPressed: goToPreviousPage,
          onClosed: Navigator.of(context).pop,
          onWaterAdded: () {
            model.onCoffeeOrderStatusChange(
                coffeeOrderId, CoffeeMakerStep.ready);
            Navigator.pop(context);
          },
        )
      ];

class AddWaterDescriptionModalPage {
  AddWaterDescriptionModalPage._();

  static WoltModalSheetPage build({
    required VoidCallback onCancelPressed,
    required VoidCallback onNextPage,
    required VoidCallback onClosed,
  }) {
    return WoltModalSheetPage(
     
      child: Builder(builder: (context) {
        print('Rebuild AddWaterDescriptionModalPage');
        return const Padding(

class WaterSettingsModalPage {
  WaterSettingsModalPage._();

  static WoltModalSheetPage build({
    required VoidCallback onBackButtonPressed,
    required VoidCallback onClosed,
    required VoidCallback onWaterAdded,
  }) {
    final buttonEnabledListener = ValueNotifier(false);

    return WoltModalSheetPage(

      child: Builder(builder: (context) {
        print('Rebuild WaterSettingsModalPage');
        return Padding(...

When I transition from AddWaterDescriptionModalPage to WaterSettingsModalPage the console output is:

When I transition back:

This is especially problem when I want to use Bloc specific to a dialog page like:

      WoltModalSheetPage(
      child: BlocProvider(
        create: (context) => TestBloc(),

Which ends up creating the bloc multiple times.

Expected behavior

The page should be drawn once and not rebuild unless it is triggered.

Please let me know if there is a way to handle this behaviour.
Thanks a lot