Reproduction

Steps to reproduce:
When I have multiple matSelect elements on page, I use getHarness() method with an appropriate selector to get the required harness. When I use the getValueText() method on the grabbed harness, I get the expected value. However if I then use the getOptions method on this harness, I get the options from the very first matSelect element on the page and not the options from the matSelect harness I got using the selector.

Expected Behavior

Get the correct options from the MatSelectHarness grabbed using a selector.

Actual Behavior

I get the options from the very first matSelect element on page and not the options from the matSelect harness I got using the selector.

Environment

• Angular: 9
• CDK/Material: 9
• Browser(s): latest Chrome
• Operating System (e.g. Windows, macOS, Ubuntu): Windows 10