diff --git a/src/bonsai/bonsai/bim/module/geometry/operator.py b/src/bonsai/bonsai/bim/module/geometry/operator.py
index acb368f3fe..10f631e58b 100644
--- a/src/bonsai/bonsai/bim/module/geometry/operator.py
+++ b/src/bonsai/bonsai/bim/module/geometry/operator.py
@@ -1550,6 +1550,7 @@ class RefreshLinkedAggregate(bpy.types.Operator, tool.Ifc.Operator):
             if parts:
                 for part in parts:
                     if part.is_a("IfcElementAssembly"):
+                        # TODO: unused expression.
                         original_data | get_original_data(part)
                     else:
                         try: