Update forms.py

added label

netbox/dcim/forms.py

@@ -525,7 +525,7 @@ def device_platform_choices():
 class DeviceFilterForm(forms.Form, BootstrapMixin):
     site = forms.MultipleChoiceField(required=False, choices=device_site_choices,
                                      widget=forms.SelectMultiple(attrs={'size': 8}))
-    group_id = forms.MultipleChoiceField(required=False, choices=rack_group_choices,
+    group_id = forms.MultipleChoiceField(required=False, choices=rack_group_choices, label='Rack Group',
                                          widget=forms.SelectMultiple(attrs={'size': 8}))
     role = forms.MultipleChoiceField(required=False, choices=device_role_choices,
                                      widget=forms.SelectMultiple(attrs={'size': 8}))