Any D-Star reflector. It might be tied to a situation where the connection is not dropped via the command to do so. Like... rebooting the Pi with a connection active. I think I also had some weirdness happening when I issued a link command without unlinking. After doing that... when I did unlink... it told me I was still linked to the original reflector.
Update: Ok... I just went back and tested this. The first scenario is true. When one reboots with a D-Star/reflector connnection active... the connection still shows active after things come back up.
The second scenario is false. Doesn¡¯t happen. Because it clearly prevents me from linking anywhere if it¡¯s already linked.