useron.number becomes 0
On macOS, I've seen twice now, in short amount of time, the current user number become 0 while online:
;eval user.number
Result (number): 0The first symptom I notice was by posting a message and having no signature and the posting user number was "Digital Man #0".
I suspect this is caused by some kind of user.tab read or write error, though I didn't see any error logged in either occurrence.