Please disregard previous mail: https://marc.info/?l=openbsd-misc&m=151000897902424&w=2
The patch in there would break any terminal emulator which does not use "-class" to set a class. Rereading the man page, I now see it is easy to achieve the same behaviour from ~/.cwmrc: command term "xterm -class Ssh" and override the binding with bind-key CM-Return xterm so that every single terminal emulator spawned via the default shortcut does not get a 'Ssh' class Sorry for the noise.