Index: sources/gui/qml/components/ModalDialog.qml
===================================================================
diff -u -ra5760947d3ed0d2748ba023a1c25e3c6aa0b1de1 -r23f8a6036e22f80c3c5fd2834a2980bb62d2a34d
--- sources/gui/qml/components/ModalDialog.qml	(.../ModalDialog.qml)	(revision a5760947d3ed0d2748ba023a1c25e3c6aa0b1de1)
+++ sources/gui/qml/components/ModalDialog.qml	(.../ModalDialog.qml)	(revision 23f8a6036e22f80c3c5fd2834a2980bb62d2a34d)
@@ -62,6 +62,7 @@
         if (autoHide && visible) {
             _autoHideAnimation.start()
         }
+        dimBackground.visible = _root.visible
     }
 
     NumberAnimation { id: _autoHideAnimation