A new option has been added for the IRC smart filter:
irc.look.smart_filter_join_unmask, with default value
30 (in minutes).
IRC plugin will automatically unmask a filtered join of a nick, if he spoke within N minutes after the join (N being the value of new option
irc.look.smart_filter_join_unmask). Moreover, nick changes are tracked, and will be unmasked with the join.
Events triggering the unmask of join are: a message (can be CTCP), a notice or an update of topic.