asn expert database update fails if file does not already exist

[sebix]

$ intelmq.bots.experts.asn_lookup.expert --update-database
Traceback (most recent call last):
  File "/usr/bin/intelmq.bots.experts.asn_lookup.expert", line 33, in <module>
    sys.exit(load_entry_point('intelmq==3.5.0', 'console_scripts', 'intelmq.bots.experts.asn_lookup.expert')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/intelmq/bots/experts/asn_lookup/expert.py", line 92, in run
    cls.update_database(verbose=parsed_args.verbose)
  File "/usr/lib/python3/dist-packages/intelmq/bots/experts/asn_lookup/expert.py", line 127, in update_database
    raise ValueError('Database file does not exist or is not a file.')
ValueError: Database file does not exist or is not a file.

The file needs to be created with whatever content before it works