fix SISEGV when exiting SALOME after activated SHAPER module

diff --git a/src/Qtx/QtxDockWidget.cxx b/src/Qtx/QtxDockWidget.cxx
index 2ef323d930b03b196762bc5b1792b7847c5cc069..3f58f92611a761765071e2e1ab1a0c128f81f29a 100644 (file)
--- a/src/Qtx/QtxDockWidget.cxx
+++ b/src/Qtx/QtxDockWidget.cxx
@@ -368,6 +368,9 @@ myWatcher( 0 )
 */
 QtxDockWidget::~QtxDockWidget()
 {
+  myWatcher->setParent(nullptr);
+  delete myWatcher;
+  myWatcher = 0;
 }
 
 /*!