Player won't work if there is only 1 segment in presentation stream

Steps to reproduce:
1. Upload a screencast as presentation video and ingest
2. Video segmentation yields only one segment
3. Player refuses playback

Actual Results:
Theodul player checks login state first (though ACL is set to public), then error is shown: "an error occured, pls. reload the page". (see attached screencast)

Expected Results:
Theodul player should play the video

Workaround (if any):
Upload the same video as presenter track, then everything works!

Maybe this is related to (https://opencast.jira.com/browse/MH-11751)?