Add @snapping_results variable for points

Fix #21784 https://issues.qgis.org/issues/21784

Author: m-kuhn

src/app/qgsmaptooldigitizefeature.cpp

@@ -211,8 +211,12 @@ void QgsMapToolDigitizeFeature::cadCanvasReleaseEvent( QgsMapMouseEvent *e )
       f.setGeometry( g );
       f.setValid( true );
 
+      addVertex( e->mapPoint(), e->mapPointMatch() );
+
       digitized( f );
 
+      stopCapturing();
+
       // we are done with digitizing for now so instruct advanced digitizing dock to reset its CAD points
       cadDockWidget()->clearPoints();
     }