form: don't let quixote3 assign a default id to widgets (#38095)

wcs/qommon/form.py

@@ -295,6 +295,8 @@ class Form(QuixoteForm):
             del kwargs['advanced']
         QuixoteForm.add(self, widget_class, name, *args, **kwargs)
         widget = self._names[name]
+        if 'id' not in kwargs and 'id' in widget.attrs:
+            del widget.attrs['id']
         widget.advanced = advanced
         return widget