now it updates only when moved or created, not when bending points are corrected

src/ManhattanConnectionModule.ts

@@ -1,10 +1,7 @@
 
 import { connectPoints } from 'diagram-js/lib/layout/ManhattanLayout';
 
-function ManhattanLayoutPlugin(eventBus, modeling) {
+export function updateWaypointsByManhattan (connection, modeling) {
-    eventBus.on('connection.changed', (event) => {
-    var connection = event.element;
-
     if (connection.source && connection.target) {
         const x0 = connection.source.x + connection.source.width / 2;
         const x1 = connection.target.x + connection.target.width / 2;
@@ -22,11 +19,31 @@ function ManhattanLayoutPlugin(eventBus, modeling) {
             modeling.updateWaypoints(connection, waypoints)
         }
     }
+}
+
+function ManhattanLayoutPlugin(eventBus, modeling) {
+    eventBus.on('connection.added', (event) => {
+    var connection = event.element;
+    updateWaypointsByManhattan(connection, modeling);
+    });
+
+    eventBus.on("shape.move.end", (event) => {
+        console.log(event.shape);
+        if (event.shape.incoming) {
+          event.shape.incoming.forEach(element => {
+            updateWaypointsByManhattan(element, modeling);
+          });
+        }
+  
+        if (event.shape.outgoing) {
+          event.shape.outgoing.forEach(element => {
+            updateWaypointsByManhattan(element, modeling);
+          });
+        }
     });
 }
 
-// export as module
 export default {
    __init__: [ 'manhattanLayoutPlugin' ],
      manhattanLayoutPlugin: [ 'type', ManhattanLayoutPlugin ]
-};
+};