Text document sidebar turns blue as soon as someone adds a comment, even if comment is not shared

[melissa-z]

This text document was shared with another user (augment mode), and as soon as the other user entered text in the sidebar the handle turned blue, even though the comment was private and not visible to the original owner. I don't think this should happen since the original owner can't see the sidebar comment anyways, unless I'm misunderstanding the blue handle color?

[bobzel]

should be fixed