Select throws error to console on keyboard interarction with reset option

[RandomNonameDude]

What is the expected behavior?

Select should not throw errors to console.

What is the current behavior?

When a select component has a reset option (but a non-reset option is currently selected) and is focused (the option list is closed), and you start pressing arrow-up key, the component throws error to console when you reach the reset option.

What are the steps to reproduce?

1. Create select component with reset option
2. Select non-reset option
3. Focus the select but don't open the options list (e. g. focus with tab key)
4. Start pressing the arrow-up until you reach the reset option
5. Take a look into the console

The issue is reproducible on the Material documentation in select examples, e. g. Select with 2-way value binding or Select with reset option

https://material.angular.io/components/select/examples

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

Material 7.3.4, tested on Chrome only.

Is there anything else we should know?

Nope.

[crisbeto]

Fixed by #15160.

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}