Index: /applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/actions/FixTask.java
===================================================================
--- /applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/actions/FixTask.java	(revision 34203)
+++ /applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/actions/FixTask.java	(revision 34204)
@@ -86,5 +86,5 @@
             monitor.subTask(tr("Updating map ..."));
             SwingUtilities.invokeAndWait(() -> {
-                MainApplication.undoRedo.afterAdd();
+                MainApplication.undoRedo.afterAdd(null);
                 MainApplication.getMap().repaint();
             });
Index: /applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/validation/SegmentChecker.java
===================================================================
--- /applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/validation/SegmentChecker.java	(revision 34203)
+++ /applications/editors/josm/plugins/pt_assistant/src/org/openstreetmap/josm/plugins/pt_assistant/validation/SegmentChecker.java	(revision 34204)
@@ -942,5 +942,5 @@
         ChangeCommand changeCommand = new ChangeCommand(originalRelation, modifiedRelation);
         MainApplication.undoRedo.addNoRedraw(changeCommand);
-        MainApplication.undoRedo.afterAdd();
+        MainApplication.undoRedo.afterAdd(changeCommand);
         PTRouteSegment wrongSegment = wrongSegments.get(testError);
         wrongSegments.remove(testError);
@@ -1077,5 +1077,5 @@
                 ChangeCommand changeCommand = new ChangeCommand(originalRelation, modifiedRelation);
                 MainApplication.undoRedo.addNoRedraw(changeCommand);
-                MainApplication.undoRedo.afterAdd();
+                MainApplication.undoRedo.afterAdd(changeCommand);
                 wrongSegmentsToRemove.add(testError);
             }