purge_ssh_keys parameter requires home to be set in the manifest

If you try to manage a user using puppet and set purge_ssh_keys option to true, it fails unless the user has home directory set in the manifest. For example:

  user { 'root':

    purge_ssh_keys => true,

  }

Expected result:

Keys are purged.

Actual result:

Failed to apply catalog: Parameter purge_ssh_keys failed on User[root]: Munging failed for value true in class purge_ssh_keys: purge_ssh_keys can only be true for users with a defined home directory at PATH_TO_MANIFEST_HERE