Created attachment 216871 [details]
Cuad0 -> Cuau0
Cuaa0 -> Cuad0 -> Cuau0
This was somehow missed in base r244040.
Created attachment 216872 [details]
Second option (my preferred option)
Use .Pa cuau0 instead. This also has the advantage that a future s/cuau0/cuaX0 doesn't miss it.
I'll leave it up to doc@.