Modal route issue - route runs twice when returning from second modal containing route outlet

This is most evident in iOS. I've set up a demo app:

https://stackblitz.com/edit/nativescript-stackblitz-templates-vwcmqt

In iOS, if you follow the steps (they're numbered) you'll see that when you navigate back on step five, the animation runs twice—backwards then forwards. This appears to come from the shouldDetach method NSRouteReuseStrategy. If I use the previous code for shouldDetatch that was altered here:

https://github.com/NativeScript/angular/commit/bebcde23c4d6a392638c23ec1e2bc63b06a9b43e

then it works without problem.

NOTE: For this demo, I've used 14.2.6-alpha.0 because without it, I can't use modals with ModalDialogParams because of injector scope issues. However, this router problem described above also occurs in 14.2.5 when the modal corrections are in place. Either way, something isn't working as it should.

Comece pelo método NSRouteReuseStrategy.shouldDetach e compare-o com a implementação anterior no commit beb cde23c4d6a392638c23ec1e2bc63b06a9b43e. Reproduza o fluxo numerado na demo do StackBlitz vinculada no iOS, incluindo o retorno do segundo modal que contém um route outlet. A tarefa estará concluída quando a navegação para voltar da etapa cinco executar sua animação uma vez, em vez de para trás e para frente.