How can i get selected value in user update form?

My form.py:

class CreateUserForm(HelperForm):
    USER_TYPE_CHOICES = (
        (False, 'Employee'),
        (True, 'Admin'),
    )
    first_name = forms.CharField(
        label="First Name",
        max_length=30,
        required=True,
        validators=[firstNameValidator]
    )
    last_name = forms.CharField(
        label="Last Name",
        max_length=30,
        required=True,
        validators=[lastNameValidator]
    )
    email = forms.EmailField(
        label="Email",
        required=True,
        validators=[emailValidator]
    )
    job_role = forms.ModelChoiceField(required=True, queryset=Group.objects.all(), initial=0)
    is_superuser = forms.ChoiceField(label='User Type', choices=USER_TYPE_CHOICES)
    is_active = forms.BooleanField(initial=False, required=False, widget=forms.HiddenInput())

    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'username',
                  'email', 'job_role', 'is_superuser', 'is_active')

What’s the initial=0 for? Get rid of it. And also after submitting the form, check in the db if the job_role has been saved. If it’s in the db and the rest is correct, it should show up in the form.

I have done what you said but it is not showing which I selected at the time of user creation, look at picture,
Thanks

class EditUserForm(HelperForm):
job_role = forms.ModelChoiceField(queryset=Group.objects.all(), required=True)

USER_TYPE_CHOICES = (
    (False, 'Employee'),
    (True, 'Admin'),
)
is_superuser = forms.ChoiceField(label='User Type', choices=USER_TYPE_CHOICES)

class Meta:
    model = User
    fields = [
        'first_name', 'last_name', 'username', 'email', 'is_superuser', 'job_role'
    ]

def __init__(self, *args, **kwargs):
    super(EditUserForm, self).__init__(*args, **kwargs)
    self.fields['job_role'].initial = self.instance.groups.all()

def save(self, commit=True):
    user = super(EditUserForm, self).save(commit)
    user.save()
    user.groups.clear()
    user.groups.add(self.cleaned_data.get('job_role'))
    return user

My views.py:

class UserEdit(PermissionRequiredMixin, AjaxUpdateView):
    model = User
    form_class = EditUserForm
    context_object_name = 'user'
    ajax_template_name = 'modal_form.html'
    ajax_form_title = 'Edit User'
    permission_required = ('users.edit_users',)

    def get_data(self):
        return {
            'info': 'Edited user information',
        }

    def post(self, request, *args, **kwargs):
        form_data = self.get_form_kwargs()['data']
        job_role_id = form_data.get('job_role', 0)
        job_role_id = 0 if job_role_id == '' else job_role_id
        job_role = Group.objects.filter(id=int(job_role_id)).first()
        user = self.get_object()
        if job_role:
            user.groups.add(job_role)
        return super(UserEdit, self).post(request, args, kwargs)