bug(MatAutocomplete): Errors not displaying

[patrickkforrit]

Is this a regression?

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

The previous version in which this bug was not present was

14.3.0

Description

Having a Error to show alongside a mat-autocomplete and mat-chip-grid the error is never shown.

Reproduction

StackBlitz link: https://stackblitz.com/edit/uvatjk?file=src%2Fapp%2Fchips-autocomplete-example.ts,src%2Fapp%2Fchips-autocomplete-example.html Steps to reproduce:

1. Touch the control
2. Enter a value
3. Remove the value

Expected Behavior

Expected the mat-form-field to have an error state and the mat-error to show up

Actual Behavior

No feedback on any error and the tag is not shown in the dom

Environment

• Angular: 15
• CDK/Material: 15
• Browser(s): Chrome
• Operating System (e.g. Windows, macOS, Ubuntu): Windows

[patrickkforrit]

Workaround use mat-hint and manually control visibility:

<mat-hint class="mat-mdc-form-field-error" *ngIf="conditionToShow">Error</mat-hint>