Run history_list_filter hook on updated labels

This way an edited label can be filtered directly instead of during
update of the entire history_list.

This can be seen if someone has CashFusion running and the "Hide
CashFusions" option enabled and proceeds to rename a label to start with
"CashFusion ".
Without this fix the transaction is not hidden until the
wallet is restarted or the "Hide CashFusions" option is toggled off and
on.

gui/qt/history_list.py

@@ -184,11 +184,18 @@ def update_labels(self):
             return
         root = self.invisibleRootItem()
         child_count = root.childCount()
+        filtered_list = []
         for i in range(child_count):
             item = root.child(i)
             txid = item.data(0, Qt.UserRole)
             label = self.wallet.get_label(txid)
             item.setText(3, label)
+            filtered = run_hook("history_list_filter", self, item, label, multi=True) or []
+            if any(filtered):
+                filtered_list.append(item)
+
+        for item in filtered_list:
+            root.removeChild(item)
 
     def update_item(self, tx_hash, height, conf, timestamp):
         if not self.wallet: return # can happen on startup if this is called before self.on_update()