[GraphEditor] Edge: Correctly update the EdgeMouseArea when moving nodes

Author: cbentejac

meshroom/ui/qml/GraphEditor/Edge.qml

@@ -148,8 +148,21 @@ Item {
         Component.onCompleted: {
             /* The curve scale must be set only once the component has been fully created, so
              * that all the events following the update of the curve scale can be taken into
-             * account */
+             * account. */
             curveScale = cubic.ctrlPtDist / root.width  // Normalize by width
         }
+
+        Connections {
+            target: root
+
+            /* When the shape of the edge changes, the curve scale must be updated accordingly
+             * for the edge to remain selectable. */
+            function onWidthChanged() {
+                edgeArea.curveScale = cubic.ctrlPtDist / root.width
+            }
+            function onHeightChanged() {
+                edgeArea.curveScale = cubic.ctrlPtDist / root.width
+            }
+        }
     }
 }