Opening multiple dialogs simultaneously does not focus the top dialog

Bug, feature request, or proposal:

Bug

What is the expected behavior?

When multiple dialogs are open the focus should transfer to the next dialog when closing the first one.

What is the current behavior?

The next dialog is not in focus when closing one dialog.

What are the steps to reproduce?

Providing a StackBlitz/Plunker (or similar) is the best way to get the team to see your issue.
Plunker starter (using on @master): https://goo.gl/DlHd6U
StackBlitz starter (using latest npm release): https://goo.gl/wwnhMV
http://plnkr.co/edit/L3mmNpTBRKnWL5Edn9SX?p=preview Press button Open two dialogs, then press enter repeatedly. It should close both dialogs, but instead dialog second dialog is closed on first enter and after that first dialog is not closed but the Open two dialogs button is focused and two new dialogs are opened on pressing enter.

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

To be able to close all dialogs with keypress and not focus stuff that is behind the dialog.

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

All material versions

Is there anything else we should know?

[crisbeto]

It doesn’t work because you’re opening them at the same time. Dialogs move focus after the animation is finished.

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