xep_0425: add missing 'id' attribute to 'Moderate' stanza plugin

slixmpp/plugins/xep_0425/stanza.py

@@ -19,7 +19,7 @@ class Moderate(ElementBase):
     namespace = NS
     name = 'moderate'
     plugin_attrib = 'moderate'
-    interfaces = {'reason'}
+    interfaces = {'id', 'reason'}
     sub_interfaces = {'reason'}
 
 

tests/test_stanza_xep_0425.py

@@ -21,12 +21,12 @@ class TestModeration(SlixTest):
 
         self.check(iq, """
 <iq type='set' id='a'>
-  <moderate xmlns='urn:xmpp:message-moderate:1'>
+  <moderate xmlns='urn:xmpp:message-moderate:1' id='some-id'>
     <retract xmlns='urn:xmpp:message-retract:1'/>
     <reason>R</reason>
   </moderate>
 </iq>
-        """, use_values=False)
+        """)
 
     def testModerated(self):
         message = Message()