The previous warning contained a typo and also somewhat implied that allowSignalWrites did something. However, setting allowSignalWrites to false has no impact at all in Angular 19.

Closes #58790

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular/blob/main/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• angular.dev application / infrastructure changes
• Other... Please describe:

What is the current behavior?

Issue Number: #58790

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

@Component({
  selector: 'app-root',
  template: "{{someSignal()}}",
  standalone: true,
})
export class AppComponent {

  someSignal = signal("test");

  constructor() {
    effect(() => {
      this.someSignal.set("Hello World");
    }, {allowSignalWrites: false});
  }
}

This will show "Hello World", so the new warning seems more appropriate.