[asterisk-users] "CBAnn" channel not going away in Asterisk 12

[Richard Kenner]

> If the channel still hangs around after the conference is destroyed
> then there is a problem.

Am I missing something obvious: I'm looking in the confbridge_exec
function.  I see a "conference = NULL" line, but no attempt to free
that structure, which is what I understand will destroy the playback
channel.  So where it is freed?