comments not always refreshing upon initial save

[balmas]

we still seem to be having a problem with first comments in a document not displaying upon initial save.

[polycrates]

The problem seems to be in app/js/arethusa.comments/services/comments.js:176 (errors out when finding length of missing object).
Quick fix that is working so far for me:
if (self.comments){
if (self.comments.length !== 0) {
addToIndex(commentContainer);
}
} else {
retrieveComments();
}
I don't know the app well enough to be sure this won't have unintended consequences, but I'm busy with a couple of treebanks on a local install, so I'll follow up if need be.

Like maybe in 2028 :-)