0022571: [CEA 1152] if selection disabled, impossible to select a mesh in "Merge nodes" in manual mode
0022571: [CEA 1152] if selection disabled, impossible to select a mesh in "Merge nodes" in manual mode

FedoraScientific/salome-smesh,FedoraScientific/salome-smesh,FedoraScientific/salome-smesh,FedoraScientific/salome-smesh