fix changing account name. Fixes #5891

src/common/pep.py

@@ -502,6 +502,9 @@ class ConnectionPEP(object):
         self._pubsub_connection = pubsub_connection
         self.reset_awaiting_pep()
 
+    def pep_change_account_name(self, new_name):
+        self._account = new_name
+
     def reset_awaiting_pep(self):
         self.to_be_sent_activity = None
         self.to_be_sent_mood = None

src/common/protocol/caps.py

@@ -38,6 +38,9 @@ class ConnectionCaps(object):
         self._capscache = capscache
         self._create_suitable_client_caps = client_caps_factory
 
+    def caps_change_account_name(self, new_name):
+        self._account = new_name
+
     def _capsPresenceCB(self, con, presence):
         """
         XMMPPY callback method to handle retrieved caps info

src/config.py

@@ -2055,6 +2055,8 @@ class AccountsWindow:
                 del gajim.gajim_optional_features[old_name]
                 del gajim.caps_hash[old_name]
                 gajim.connections[old_name].name = new_name
+                gajim.connections[old_name].pep_change_account_name(new_name)
+                gajim.connections[old_name].caps_change_account_name(new_name)
                 gajim.connections[new_name] = gajim.connections[old_name]
                 del gajim.connections[old_name]
             gajim.config.add_per('accounts', new_name)