cubicweb-nosylist #836453 not notified icon after logging whereas I clicked to be notified [waiting feedback]

On this page: https://www.logilab.net/cwo/ticket/758169, I click to be notified for this ticket. But when I log in again, the notification displayed is not the correct one (ie: the icon to be notified). Perhaps it is linked to the email which wasn't configured.

prioritynormal
typebug
done in0.4.0
load0.500
load left0.500
closed by<not specified>