Fix #6785: py domain: :py:attr: is able to refer properties again

tests/roots/test-domain-py/module.rst

@@ -18,6 +18,12 @@ module
 
     * Link to :py:meth:`module_a.submodule.ModTopLevel.mod_child_1`
 
+.. py:method:: ModTopLevel.prop
+   :property:
+
+   * Link to :py:attr:`prop attribute <.prop>`
+   * Link to :py:meth:`prop method <.prop>`
+
 .. py:currentmodule:: None
 
 .. py:class:: ModNoModule