Publish fails when previous_version is set to 'latest'

[hesamsagha]

Description

Running

audb.publish(
    DB_ROOT,
    version=VERSION,
    repository=repository,
    num_workers=n_workers,
    verbose=True,
    previous_version='latest'
)

produces error:

Traceback (most recent call last):
  File "/builds/project/aisoundlab/data/aisoundlabtools/publish_runner.py", line 32, in <module>
    audb.publish(
  File "/usr/local/lib/python3.10/site-packages/audb/core/publish.py", line 790, in publish
    raise RuntimeError(
RuntimeError: You did not set a dependency to a previous version, but you have a 'db.parquet' file present in /builds/project/aisoundlab/data/aisoundlabtools/study_exports/heartmetrix/merged.out.

There is already a previous version on artifactory.

Affected versions

• 1.11.4 (with 1.11.3 the code works fine)