Cannot use baselines in config file

Hi,

Whenever I refer to an existing baseline in the config YAML, I receive the following error:

Traceback (most recent call last):
  File "/usr/local/bin/detect-secrets-server", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.8/dist-packages/detect_secrets_server/__main__.py", line 37, in main
    return actions.scan_repo(args)
  File "/usr/local/lib/python3.8/dist-packages/detect_secrets_server/actions/scan.py", line 32, in scan_repo
    secrets = repo.scan(
  File "/usr/local/lib/python3.8/dist-packages/detect_secrets_server/repos/base_tracked_repo.py", line 163, in scan
    baseline = self.storage.get_baseline_file(self.baseline_filename)
  File "/usr/local/lib/python3.8/dist-packages/detect_secrets_server/storage/base.py", line 141, in get_baseline_file
    return git.get_baseline_file(
  File "/usr/local/lib/python3.8/dist-packages/detect_secrets_server/storage/core/git.py", line 83, in get_baseline_file
    return _git(
  File "/usr/local/lib/python3.8/dist-packages/detect_secrets_server/storage/core/git.py", line 206, in _git
    output = subprocess.check_output(
  File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "/usr/lib/python3.8/subprocess.py", line 512, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['git', '--git-dir', '/root/.detect-secrets-server/repos/5b0da728830dfec0ad460e8451f809f4576b338e4fcc2489726ebe73bcc30279bf972376733ae5a0f4026ff7aa4e2dfbb504526452b2246fefb42330e700a35b', 'show', 'HEAD:/workdir/project.secrets.baseline']' returned non-zero exit status 128.

When I delete the baseline line from the config file, it works. I've also tried adding the full path, but it still didn't work.