App is refreshed from multiple initial hot updates on HMR restart

[DimitarTachev]

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: 6.2.2
• Cross-platform modules: 6.2.0
• Android Runtime: 6.2.0
• iOS Runtime: 6.2.0
• Plugin(s): 6.2.0

To Reproduce

1. Clone the Worker Plugin repository - https://github.com/NativeScript/worker-loader/
2. Run its demo app
3. Make a few changes in app.component.ts
4. Make a change in typescript.worker.ts
5. The Inside TS Worker log will be shown multiple times

Expected Behavior
The log should be shown once.