select: option with value of 0 is not selected when using debounce

[YonatanKra]

Actual behavior:

• What is the issue? Can't select option with value 0
• What is the expected behavior? I would expect the option to be selected.

CodePen or Steps to reproduce the issue: *

• CodePen Demo which shows your issue : http://codepen.io/ramtob/pen/KMdwmJ
• Plnkr demo: http://plnkr.co/edit/NrsFSBlFFxSvoxe93L4A?p=preview
• Details: Try to select the first option (its ng-value resolves to 0). See that it is not selected. Remove the debounce (set it to 0 for instance) and see it doesn't reproduce.

Angular Versions: *

• Angular Version: 1.5.6
• Angular Material Version: 1.0.9

Additional Information:

• Browser Type: Chrome
• Browser Version: 50.0.2661.102 m
• OS: Windows
• Stack Traces:

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I've solved it in my case using this PR: https://github.com/angular/material/pull/8702 (thanks to @ramtob for a thorough debugging).

I could have just used ngModel.$options.debounce = 0 or something but thought someone might want to actually use the debounce on the select as well (as it was in my case).

[simondevries]

I had the same problem when binding a Select component to a list of enums. When I select the first item in the list (With value 0) it updates the model but not the value in the select component. I have to re click on the select component for it to update.

[Splaktar]

I was able to reproduce this with AngularJS 1.6.6 and AngularJS Material 1.1.5. https://codepen.io/Splaktar/pen/ppwqed

[Splaktar]

The current PR (#8702) author has been unresponsive to requests for squashing of commits and addition of a unit test. If someone else from the community would like to submit a PR that addresses these issues, it would be welcomed. Thank you.