If you create a Channel.Type.StreamTube.DRAFT channel but never call OfferStreamTube on it, the tube close stanza is still sent to the contact when a local application closes the channel.
<Robot101> that's a common pattern, tp objects which pend shouldn't say anything when you close them... :)
<Robot101> we've had calls, MUCs, IM channels all sending nonsense to the other end when we've never said hi in the first place I think :)
This bug is similar to Bug #18951 for IM channels.
telepathy-salut may have the same bug.