Running django-admin migrate command fails due KeyError: 'nulls_distinct'

[trebor74hr]

Django version is: 5.0.11
ibm_db_django version is 1.5.3.0

Running migration for django.contrib.auth application (0009 or 0010, e.g.: django-admin.py migrate auth 0009) I get error:

   ....
    schema_editor.alter_field(from_model, from_field, to_field)
  File "/srv/pyenv311/lib64/python3.11/site-packages/ibm_db_django/schemaEditor.py", line 287, in alter_field
    self._alter_field(model, old_field, new_field, old_type, new_type,
  File "/srv/pyenv311/lib64/python3.11/site-packages/ibm_db_django/schemaEditor.py", line 413, in _alter_field
    old_field, new_field = self.alterFieldDataTypeByRemaking(model, old_field, new_field, strict)
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/srv/pyenv311/lib64/python3.11/site-packages/ibm_db_django/schemaEditor.py", line 845, in alterFieldDataTypeByRemaking
    self.add_field_post(model, tmp_new_field, notnull, p_key, unique)
  File "/srv/pyenv311/lib64/python3.11/site-packages/ibm_db_django/schemaEditor.py", line 771, in add_field_post
    sql = self.sql_create_unique % {'table': self.quote_name(model._meta.db_table), 'name': constraint_name, 'columns': self.quote_name(field.column), 'deferrable': self._deferrable_constraint_sql(None)}
          ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
KeyError: 'nulls_distinct'

Quick workaround is:

771                 sql = self.sql_create_unique % {'table': self.quote_name(model._meta.db_table), 'name': constrai...
772                                 , "nulls_distinct": ""}

but the proper fix should supply some meaningful value.