Fix error editing curves based representations #5499

KeyError: 'bpy_struct[key]: key "ios_edges_item_ids" not found'

It's still not possible to edit curve representations, just fixing an error trying to import representation items.

src/bonsai/bonsai/bim/import_ifc.py

@@ -1360,6 +1360,12 @@ class IfcImporter:
             v2 = vertices[edge[1]]
             polyline.points.add(1)
             polyline.points[-1].co = mathutils.Vector(v2)
+        # TODO: remove error handling after we update build in Bonsai.
+        try:
+            edges_item_ids = ifcopenshell.util.shape.get_edges_representation_item_ids(geometry).tolist()
+        except AttributeError:
+            edges_item_ids = []
+        curve["ios_edges_item_ids"] = edges_item_ids
         return curve
 
     def create_mesh(