bug(@angular/google-maps): Map Info Window isn't opened when call open() without params

[Ajax-ua]

Reproduction

Use StackBlitz to reproduce your issue: https://components-issue-1jnycv.stackblitz.io

Steps to reproduce:

1. Right click on the map. The info window should appear
2. In package.json, change @angular/google-maps version to 9.2.4. Then right click on the map. The info window appears

Expected Behavior

The info window should appear on @angular/google-maps v10.

Actual Behavior

The info window doesn't appear

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