Fix for the '53126: Salome application crashes after 'Update Study' in NoteBook window' issue.
Fix for the '53126: Salome application crashes after 'Update Study' in NoteBook window' issue.

FedoraScientific/salome-gui,FedoraScientific/salome-gui,FedoraScientific/salome-gui,FedoraScientific/salome-gui,FedoraScientific/salome-gui,FedoraScientific/salome-gui