[finaing]

pose_to_segments adds the .pose file to the EAF with add_linked_file(), which writes a MEDIA_DESCRIPTOR. ELAN treats every media descriptor as a playable media file, but it can't play .pose files. With add_secondary_linked_file(), the pose file goes into a LINKED_FILE_DESCRIPTOR instead. ELAN lists it as an associated file and doesn't try to play it, and the link to the pose file is kept. --no-pose-link still turns the link off.