mdAutosizeMaxRows is doubled in Firefox

[mychalhackman]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

mdAutosizeMaxRows should limit textarea rows as expected across browsers.

What is the current behavior?

mdAutosizeMaxRows seems to be doubled in Firefox 54.0.1 on Windows 10

What are the steps to reproduce?

Add mdTextareaAutosize and mdAutosizeMaxRows="5" and test in Firefox.

• Chrome, Opera, IE11 will stop growing at the amount of rows you have defined
• Firefox appears to grow to maxRows x 2

https://plnkr.co/edit/6hKDXTJyA2Ytt0epMEMa?p=preview

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

Angular: 4.2.2
Material: 2.0.0-beta.7, 2.0.0-beta.8
OS: Windows 10
Typescript: 2.3.4
Browser: Firefox 54.0.1

[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.}