Skeletons with single treenodes require skeleton_ids on the vertices for NeuroHDF export
Skeletons with single treenodes require skeleton_ids on the vertices for NeuroHDF export

Thanks to Casey Schneider-Mizell for spotting this bug.

fzadow/CATMAID,htem/CATMAID,fzadow/CATMAID,fzadow/CATMAID,htem/CATMAID,fzadow/CATMAID,htem/CATMAID,htem/CATMAID