Using a mat-autocomplete on an input field of type "number"

[joshuaball]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

Input fields that are of type "number" should not have their data converted to a "string" type.

What is the current behavior?

When using a mat-autocomplete on an input field of type "number", the data in the field is converted from a number to a string when the user types in the input field or uses the number wheel. An input field without a mat-autocomplete provides data in the format expected. This is using the get API of the FormGroup from "@angular/forms".

What are the steps to reproduce?

See the current behavior above. Here is a SlackBitz:
https://stackblitz.com/edit/angular-material2-issue-mat-autocomplete

What is the use-case or motivation for changing an existing behavior?

Data integrity

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

Angular: 5.2.1
Angular Material: 5.1.0

Is there anything else we should know?

Give it a whirl.

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