cubicweb-comment #798919 use something else than standar list bullet as new comment marker [rejected]

see https://www.logilab.net/cwo/ticket/784780 for instance : it's not easy to distinguish between different comments / items in a bullet list in a comment's content

prioritynormal
typebug
done in1.7.0
load0.000
load left0.000
closed by<not specified>