Fix obscure text

[julek-kal]

Hi, when i try to use SuffixButton.obscureText in second step of stepper/wizard form, initial state is obscureText false, I must click on suffixButton, then obscureText is true. If i put this password field in first step, everything is ok.

class LoginFormBloc extends FormBloc<String, String> {
  final TextFieldBloc email = TextFieldBloc(
      validators: [FieldBlocValidators.required, FieldBlocValidators.email]);
  final TextFieldBloc password =
      TextFieldBloc(validators: [FieldBlocValidators.required]);
  LoginFormBloc() {
    addFieldBlocs(step: 0, fieldBlocs: [email]);
    addFieldBlocs(step: 1, fieldBlocs: [password]);
  }

StepperFormBlocBuilder<LoginFormBloc>(
                stepsBuilder: (formBloc) {
                  return [_emailStep(formBloc), _passwordStep(formBloc)];
                },
                physics: ClampingScrollPhysics(),
                type: StepperType.horizontal,
                formBloc: loginFormBloc,
              ));

FormBlocStep _passwordStep(LoginFormBloc loginFormBloc) {
  return FormBlocStep(
      title: Text('Password'),
      content: Column(
        mainAxisSize: MainAxisSize.min,
        children: <Widget>[
          Text('Enter password to sign in with your email'),
          TextFieldBlocBuilder(
            suffixButton: SuffixButton.obscureText,
            decoration: InputDecoration(
                prefixIcon: Icon(Icons.lock),
                hintText: 'Password',
                border: OutlineInputBorder()),
            textFieldBloc: loginFormBloc.password,
          ),
        ],
      ));
}

[GiancarloCode]

Thanks for reporting this.
Fixed in flutter_form_bloc: ^0.12.1