Update simpeg_drivers/params.py

Co-authored-by: domfournier <dominiquef@mirageoscience.com>

Author: benk-mira

simpeg_drivers/params.py

@@ -128,15 +128,10 @@ def mesh_cannot_be_rotated(cls, value: Octree):
     def out_group_if_none(cls, data) -> SimPEGGroup:
         group = data.get("out_group", None)
 
-        if isinstance(group, UIJsonGroup):
+        if isinstance(group, UIJsonGroup | type(None)):
+            name = cls.title if group is None else group.name
             with fetch_active_workspace(data["geoh5"], mode="r+") as geoh5:
-                group = SimPEGGroup.create(geoh5, name=group.name)
-                group.metadata = None
-
-        elif group is None:
-            with fetch_active_workspace(data["geoh5"], mode="r+") as geoh5:
-                group = SimPEGGroup.create(geoh5, name=cls.title)
-                group.metadata = None
+                group = SimPEGGroup.create(geoh5, name=name)
 
         data["out_group"] = group