[Gmsh] Groups do not show on opening of a med file

[jean pierre aubry]

hello

when i open a .med file, more exactly a Code_Aster result .med file
the Visibility -> List Browser -> Physical groupx tab is empty
so i am unable to restrict the view to some groups
i have to do a File -> Clear and File -> open and then it gets visible

that is just only a small annoyance but may be it can be easily
corrected

jean pierre aubry