Error when handling multiple forms in the same View

I'm trying to create a view that handles two forms with models related by a ForeignKey. The purpose of this form is to add a Bedroom and the Lights related to that Bedroom on the same page.

#views.py
def add_bedroom(request, pk):
    get_property_id = pk
    data = {'property':get_property_id}
    property_reference = Property.objects.get(pk=get_property_id)
    if request.method == 'POST':

        bedroom_form = AddBedroomForm(request.POST, request.FILES, initial=data)
        lighting_form = LightingBedroomAddForm(request.POST)

        if bedroom_form.is_valid() and lighting_form.is_valid():
            bedroom = bedroom_form.save()
            add_lighting = lighting_form.save(commit=False)
            add_lighting.bedroom = bedroom
            add_lighting.save()

            return HttpResponseRedirect(reverse('properties:property_detail', args=[pk]))
    else:
        print('Error')
        bedroom_form = AddBedroomForm(initial=data)
        lighting_form = LightingBedroomAddForm()

    context = {
        'add_bedroom_form':bedroom_form,
        'add_lighting_form':lighting_form,
        'title':"Add Bedroom",
        'reference':property_reference,
    }
    return render(request, 'properties/add-bedroom.html', context)

For some reason it doesn't work and my guess is that when I assign this add_lighting.bedroom = bedroomit doesn't get the id value. I get the POST printed but it just reloads the page(I don't have validation errors). What am I doing wrong here? I've checked this Link1 and this Link2

#models.py
class Bedroom(models.Model):
    type = models.CharField(db_column='Type', choices=BEDROOM_TYPE_CHOICES, max_length=50)
    bed_dimensions = models.CharField(db_column='Bed_Dimension', choices=BED_DIMENSION_CHOICES, max_length=30)
    image = models.ImageField(null=True, blank=True)
    ensuite = models.BooleanField(default=False)
    notes = models.CharField(db_column='Notes', max_length=500, blank=True, null=True)  # Field name made lowercase.
    property = models.ForeignKey(Property, null=False, on_delete=models.CASCADE, related_name='bedroom')

    def __str__(self):
        return str(self.pk)

class LightingBedroom(models.Model):
    type = models.CharField(db_column='Type', choices=LIGHTING_TYPE_CHOICES, max_length=30)
    bulb_type = models.CharField(db_column='Bulb_Type',  max_length=30)
    bedroom = models.ForeignKey(Bedroom, on_delete=models.CASCADE)

#forms.py
class AddBedroomForm(forms.ModelForm):
    property = forms.ModelChoiceField(queryset=Property.objects.all(),widget=forms.Select(
    attrs={
    'class':'form-control custom-select',
    'id':'disabledSelect',
    }))
    type = forms.CharField(widget=forms.Select(choices=BEDROOM_TYPE_CHOICES,
    attrs={
    'class':'form-control custom-select',
    'id':'type',
    }))
    bed_dimensions = forms.CharField(widget=forms.Select(choices=BED_DIMENSION_CHOICES,
    attrs={
    'class':'form-control custom-select',
    'id':'type',
    }))
    ensuite = forms.BooleanField(required=False,widget=forms.CheckboxInput(
    attrs={
    'class':'custom-control-input',
    'type':'checkbox',
    'id':"customCheck1",
    }))
    notes = forms.CharField(required=False, widget=forms.Textarea(
    attrs={
    'class':'form-control',
    'rows':'5',
    'id':'pdesc',
    'placeholder':"Add Notes",
    }))
    image = forms.ImageField(required=False, widget=forms.FileInput(
    attrs={
    'id':'form-input-file-now',
    'class':'dropify',
    }))

    class Meta:
        model = Bedroom
        fields = ('type','bed_dimensions','ensuite','notes','image','property')

class LightingBedroomAddForm(forms.ModelForm):
    type = forms.CharField(widget=forms.Select(choices=LIGHTING_TYPE_CHOICES,
    attrs={
    'class':'form-control custom-select',
    'id':'type',
    }))
    bulb_type = forms.CharField(widget=forms.TextInput(
    attrs={
    'class':'form-control',
    'type':'text',
    'id':"pname",
    'placeholder':"Enter Name",
    }))
    bedroom = forms.ModelChoiceField(queryset=Bedroom.objects.all(),widget=forms.Select(
    attrs={
    'class':'form-control custom-select',
    'id':'disabledSelect',
    }))

    class Meta:
        model = LightingBedroom
        fields = ('type','bulb_type','bedroom')