bug(form-field): Default options not applied in dialog

[martinboue]

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

MAT_FORM_FIELD_DEFAULT_OPTIONS do not apply to form-field inside material dialog component.

Reproduction

in root app.component.ts:

@Component({
	...
	providers: [
		{ provide: MAT_FORM_FIELD_DEFAULT_OPTIONS, useValue: { appearance: 'outline' } }
	]
})
export class AppComponent { ... }

in dialog.component.html:

<h2 mat-dialog-title i18n>My title</h2>
<mat-dialog-content>
	<mat-form-field>
		<mat-label>Some field</mat-label>
		<input matInput type="text">
	</mat-form-field>
</mat-dialog-content>

dialog.component is opened using this.dialog.open(DialogComponent)

Expected Behavior

Outline appearance

Actual Behavior

Fill appearance

Environment

• Angular: v19
• CDK/Material: v19
• Browser(s): Chrome
• Operating System (e.g. Windows, macOS, Ubuntu): Windows