Add a <item/> node in the presence of a leaving participant

fix #3339

src/xmpp/xmpp_component.cpp

@@ -425,7 +425,8 @@ void XmppComponent::send_history_message(const std::string& muc_name, const std:
 #endif
 
 void XmppComponent::send_muc_leave(const std::string& muc_name, const std::string& nick, Xmpp::body&& message,
-                                   const std::string& jid_to, const bool self, const bool user_requested)
+                                   const std::string& jid_to, const bool self, const bool user_requested,
+                                   const std::string& affiliation, const std::string& role)
 {
   Stanza presence("presence");
   {
@@ -447,6 +448,9 @@ void XmppComponent::send_muc_leave(const std::string& muc_name, const std::strin
             status["code"] = "332";
           }
       }
+    XmlSubNode item(x, "item");
+    item["affiliation"] = affiliation;
+    item["role"] = role;
     if (!message_str.empty())
       {
         XmlSubNode status(presence, "status");

src/xmpp/xmpp_component.hpp

@@ -150,7 +150,8 @@ public:
                       Xmpp::body&& message,
                       const std::string& jid_to,
                       const bool self,
-                      const bool user_requested);
+                      const bool user_requested,
+                      const std::string& affiliation, const std::string& role);
   /**
    * Indicate that a participant changed his nick
    */