mat-button-toggle-group selected button deselects on data-binding change

[e-thn]

What is the expected behavior?

The mat-button-toggle-group retains the currently selected button toggle when updating data-sources (an array of objects with a string property).

What is the current behavior?

When using a mat-button-toggle-group with an ngFor, if the array of items being iterated over is changed to a different list of items, then the 'should be selected' button toggle becomes deselected.

What are the steps to reproduce?

ver. 7.3.1
https://stackblitz.com/edit/mat-button-toggle-issue
ver. 7.2.0
https://stackblitz.com/edit/mat-button-toggle-issue-working

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

My current version of angular material is 7.3.3, the last version I can find that the issue is not present is version 7.2.0.

Other Info

My guess is this issue is related to this commit.

[jinsts]

We are experiencing the same issue after upgrading to angular material 7.3.0.

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