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CSS special selector ":host" only work first time #1845

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@m-abs

Description

@m-abs

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: 5.4.0
  • Cross-platform modules:
  • Android Runtime: 5.4.0
  • iOS Runtime:
  • Plugin(s):
  • NativeScript-Angular: 7.2.4
  • Angular: 7.2.15

Describe the bug

The :host css selector only works first time, after that that the selector is ignored for the component.

To Reproduce

  • Use :host in a components stylesheet.
  • Use the component more than once.
  • The style is ignored.

Expected behavior
I'd expect the style to be applied to every instance of the component.

Sample project

I've made a small project with a ListView and an item-component here:
https://play.nativescript.org/?template=play-ng&id=NXYfcY&v=15

All the items should have: background-color = green, color = black, text centered, font-weight = normal and padding = 8.
But only the first item looks like that the others have: background-color: blue, color = white, text right aligned, font-weight = bold and no padding.

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