get_indices_as_dataframe returns an empty dataframe if using secondary_indices

[brl0]

get_indices_as_dataframe returns an empty dataframe if the dataset was created using secondary_indices, even though .partitions and .index_columns reflect correct values.

Creating an identical dataset without secondary_indices works normally.

The dataset was created with update_dataset_from_ddf.

Using kartothek 3.8.2.

This seems to be an issue, but let me know if I am missing something. Thanks.