cubicweb-conference #542283 list of talks should show names, not logins [resolved]

Display a conference, switch to tab "list of talks". The second column shows the login instead of the name of the person.

prioritynormal
typebug
done in0.2.0
load0.100
load left0.000
closed by#7af63a03e0a2 Display full name instead of login in list of talks (closes #542283)