Reset model to empty list before starting to yield for data

src/cutecoin/models/identities.py

@@ -129,6 +129,8 @@ class IdentitiesTableModel(QAbstractTableModel):
         logging.debug("Refresh {0} identities".format(len(identities)))
         self.beginResetModel()
         self.identities_data = []
+        self.endResetModel()
+        self.beginResetModel()
         for identity in identities:
             data = yield from self.identity_data(identity)
             self.identities_data.append(data)

src/cutecoin/models/network.py

@@ -178,6 +178,8 @@ class NetworkTableModel(QAbstractTableModel):
     def refresh_nodes(self):
         self.beginResetModel()
         self.nodes_data = []
+        self.endResetModel()
+        self.beginResetModel()
         if self.community:
             for node in self.community.network.nodes:
                 data = yield from self.data_node(node)