DOCS: Added fixme to fill_xlsx

integrationtests/test_ex_import_xlsx.py

@@ -268,6 +268,7 @@ def test_export_list_refs(tmpdir):
     sheet_training = filled_generated["Training"]
     assert sheet_training.max_row == 7
     assert sheet_training.max_column == 19
+    # Use same transformation as fill_xlsx for datetime comparison.
     date = sheet_training["D7"].value
     assert date == datetime.fromisoformat("2024-03-21 14:12:00+00:00"
                                           ).astimezone().replace(tzinfo=None)

src/caosadvancedtools/table_json_conversion/fill_xlsx.py

@@ -187,6 +187,7 @@ Returns
 out: union[dict, None]
   If ``only_collect_insertables`` is True, return a dict (path string -> value)
         """
+        # FIXME The `utc` parameter is neither used, tested nor propagated recursively.
         assert (current_path is None) is (context is None), (
             "`current_path` and `context` must either both be given, or none of them.")
         if current_path is None: