Fix bug where objects created with the same name fail to sync geometry on export

src/blenderbim/blenderbim/bim/export_ifc.py

@@ -94,11 +94,13 @@ class IfcExporter:
             ifcopenshell.api.run("root.remove_product", self.file, **{"product": product})
 
     def sync_edited_objects(self):
-        for obj_name in IfcStore.edited_objs.copy():
-            obj = bpy.data.objects.get(obj_name)
+        for obj in IfcStore.edited_objs.copy():
             if not obj:
                 continue
-            bpy.ops.bim.update_representation(obj=obj.name)
+            try:
+                bpy.ops.bim.update_representation(obj=obj.name)
+            except ReferenceError:
+                pass  # The object is likely deleted
         IfcStore.edited_objs.clear()
 
     def sync_object_placement(self, obj):

src/blenderbim/blenderbim/bim/handler.py

@@ -21,9 +21,9 @@ def mode_callback(obj, data):
         if obj.data.BIMMeshProperties.ifc_definition_id:
             representation = IfcStore.get_file().by_id(obj.data.BIMMeshProperties.ifc_definition_id)
             if representation.RepresentationType in ["Tessellation", "Brep", "Annotation2D"]:
-                IfcStore.edited_objs.add(obj.name)
+                IfcStore.edited_objs.add(obj)
         elif IfcStore.get_file().by_id(obj.BIMObjectProperties.ifc_definition_id).is_a("IfcGridAxis"):
-            IfcStore.edited_objs.add(obj.name)
+            IfcStore.edited_objs.add(obj)
 
 
 def name_callback(obj, data):

src/blenderbim/blenderbim/bim/module/geometry/operator.py

@@ -262,7 +262,7 @@ class UpdateRepresentation(bpy.types.Operator):
 
         for obj in objs:
             self.update_obj_mesh_representation(context, obj)
-            IfcStore.edited_objs.discard(obj.name)
+            IfcStore.edited_objs.discard(obj)
         return {"FINISHED"}
 
     def update_obj_mesh_representation(self, context, obj):