bug(chips): MatChipListbox with hideSingleSelectionIndicator does not hide selection indicator on options that have matChipAvatar

[jermowery]

Is this a regression?

• Yes, this behavior used to work in the previous version

The previous version in which this bug was not present was

No response

Description

MatChipListbox hideSingleSelectionIndicator is not hiding the single selection indicator when a MatChipOption has a MatChipAvatar child

Reproduction

StackBlitz link: https://stackblitz.com/edit/components-issue-rcxta6?file=src%2Fapp%2Fexample-component.html
Steps to reproduce:

1. Have a MatChipListbox with a MatChipOption where the MatChipOption has as MatChipAvatar
2. Set hideSingleSelectionIndicator="true" on the MatChipListbox
3. Click the option from (1)
4. The selection indicator will be there

Expected Behavior

The single selection indicator should not appear

Actual Behavior

The single selection indicator does appear

Environment

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

[crisbeto]

The naming/docs could use a bit of work, but the checkmark that shows up on top of the avatar isn't what's considered the "single selection indicator", it is the "selection indicator". I can see an argument about covering it through hideSingleSelectionIndicator though.