Signal Forms - Reset bug

[tylerlittle]

Which @angular/* package(s) are the source of the bug?

forms

Is this a regression?

No

Description

I am experimenting with clearing a dependent field using signal forms. I have come across an issue where calling reset on the dependent field, the field is not reset with the value provided.

form = form(signal(defaultFormValue));

continentName = computed(() => this.form.continentName().value());

constructor() {
  effect(() => {
    this.continentName();
    this.form.countryName().reset("");
  });
}

After getting feedback on this in the Angular discord, it was pointed out that the _reset function isn't accounting for falsy values like empty strings.

angular/packages/forms/signals/src/field/node.ts

Line 231 in 5880fbc

if (value) {

Thank you.

Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-aptcun6k?file=src%2Fmain.ts

Please provide the exception or error you saw

Please provide the environment you discovered this bug in (run ng version)

Angular CLI       : 21.0.2
Angular           : 21.0.3
Node.js           : 22.19.0
Package Manager   : npm 10.9.3
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.0.2            │ 21.0.2            │
│ @angular/cli              │ 21.0.2            │ 21.0.2            │
│ @angular/common           │ 21.0.3            │ 21.0.3            │
│ @angular/compiler         │ 21.0.3            │ 21.0.3            │
│ @angular/compiler-cli     │ 21.0.3            │ 21.0.3            │
│ @angular/core             │ 21.0.3            │ 21.0.3            │
│ @angular/forms            │ 21.0.3            │ 21.0.3            │
│ @angular/platform-browser │ 21.0.3            │ 21.0.3            │
│ @angular/router           │ 21.0.3            │ 21.0.3            │
│ rxjs                      │ 7.8.2             │ ^7.8.1            │
│ typescript                │ 5.9.3             │ ^5.8.2            │
└───────────────────────────┴───────────────────┴───────────────────┘

Anything else?

No response