Index: sources/gui/qml/components/RangeRect.qml
===================================================================
diff -u -rc9f8f8cf3c6c37fc6460d8675c62c9442c4d4263 -r905fde2f9211f492828b746b615750b5ae84d4de
--- sources/gui/qml/components/RangeRect.qml	(.../RangeRect.qml)	(revision c9f8f8cf3c6c37fc6460d8675c62c9442c4d4263)
+++ sources/gui/qml/components/RangeRect.qml	(.../RangeRect.qml)	(revision 905fde2f9211f492828b746b615750b5ae84d4de)
@@ -84,8 +84,9 @@
     }
 
     MouseArea { id: _mouseArea
-        anchors.topMargin   : -touchMargin
-        anchors.bottomMargin: -touchMargin
+        // Expand the touch area by all edges of the _root item
+        anchors.margins    : -touchMargin
+
         anchors.fill: parent
         onPositionChanged: {
             _root.dragged(mouse)