ngModel / formControl does not update when inside Modal -> TabView -> TabItem in iOS

[manojdcoder]

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: 5.0.0
• Cross-platform modules: 5.0.1
• Android Runtime: N/A
• iOS Runtime: 5.0.1
• Plugin(s): N/A
• NativeScript-Angular: 6.2.0
• Angular: 6.1.10

Describe the bug
ngModel / formControl doesn't update the values when inside a Modal Dialog -> TabView -> TabItem in iOS. Looks like controls inside the last TabItem works as expected, but not others.

To Reproduce
Place TextFields with ngModel inside a TabView that should be inside a Modal Dialog. Model never gets updated, it's same in case of formControls too.

Expected behavior
In the sample project below, labels in Tab1 and Tab2 should update as user change the text in the text fields on the same tabs.

Sample project
https://play.nativescript.org/?template=play-ng&id=ptOL8q&v=4

Additional context
This doesn't look like an Angular only issue, as the text change event itself is failing.

[manojdcoder]

Update:

It must be Angular specific, same scenario works as expected with Core.

Sample project
https://play.nativescript.org/?template=play-tsc&id=226zEk