get_csv_annotations AttributeError: 'NoneType' object has no attribute 'val'

[will-moore]

https://qa.openmicroscopy.org/qa/feedback/42196/

File "/opt/omero/web/venv3/lib/python3.10/site-packages/django/core/handlers/exception.py", line 55, in inner
response = get_response(request)

File "/opt/omero/web/venv3/lib/python3.10/site-packages/django/core/handlers/base.py", line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/opt/omero/web/venv3/lib/python3.10/site-packages/omeroweb/decorators.py", line 538, in wrapped
retval = f(request, *args, **kwargs)

File "/opt/omero/web/venv3/lib/python3.10/site-packages/omero_parade/views.py", line 145, in dataprovider_list
data = module.get_dataproviders(request, conn)

File "/opt/omero/web/venv3/lib/python3.10/site-packages/omero_parade/csv_filters/data_providers.py", line 71, in get_dataproviders
return get_names(conn, dtype, obj_id)

File "/opt/omero/web/venv3/lib/python3.10/site-packages/omero_parade/csv_filters/data_providers.py", line 57, in get_names
csv_files = get_csv_annotations(conn, obj_type, obj_id)

File "/opt/omero/web/venv3/lib/python3.10/site-packages/omero_parade/csv_filters/data_providers.py", line 40, in get_csv_annotations
ann.file.size.val < MAX_CSV_SIZE and

AttributeError: 'NoneType' object has no attribute 'val'