When there is already an instance of parole running, and I do
$ parole Videos/
the whole content of the Videos directory is added to the playlist, and parole starts playing the first item of the directory, as expected. When using
$ parole -a Videos/
a "Videos" item appears in the playlist. If I try to play it, parole simply complains that the item is a directory and can't be played.
It seems to me that the behavior with respect to directories could be consistent in both cases, which means always enqueue the directory content.
Sean Davis referenced this bugreport in commit ef3c6ebf89028f2cdea7c1ca860f1a11ed69912e
Fix adding directories to the queue from cli (bug #12899)
This issue was resolved above and will be included in the next release.