Angular 12 migration leads to huge amounts of Change Detection cycles

[cjohn001]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 8.0.2
  "@nativescript/core": "~8.0.0"
  "@nativescript/android": "8.0.0",
  "@nativescript/ios": "JSC",
  "@angular/*": "~12.1.2",
  "@nativescript/angular": "~12.0.6"

Describe the bug
After migration to the Angular 12 I am observing huge amounts of Change Detection cycles. About 50 cycles when navigating to an empty page, and about 300 cycles when navigating to a page with content.

Cycles where measured via calls to ngAfterViewChecked().

Note: For everyone observing the same issue. A workaround exists my setting up Angular as follows. I am not sure yet. if this breaks other things:

appModuleBootstrap: (reason: string) =>
platformNativeScript().bootstrapModule(AppModule, { ngZoneEventCoalescing: true })

[cjohn001]

shifted to angular 12 repo