bug(MatAutoComplete): optionActivated is invoked with the first item when ESC is pressed

[conner-fallone]

Reproduction

https://stackblitz.com/edit/angular-nfavep?file=src%2Fapp%2Fautocomplete-auto-active-first-option-example.html

Steps to reproduce:

1. Click in the auto complete to toggle the dropdown
2. Arrow down to item "Two" or "Three"
3. Press the ESC key and notice that optionActivated fires for item "One" (see log statements)

Expected Behavior

The optionActivated option should not be invoked when the ESC key is pressed to close the auto complete

Actual Behavior

The optionActivated option is invoked when it shouldn't be since the the auto complete is closing

Environment

• Angular: 11
• CDK/Material: 11
• Browser(s): Chrome
• Operating System (e.g. Windows, macOS, Ubuntu): Windows

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