odd display behavior

Happy New Year to all.

I was just reviewing old mail in a bunch of MailDir folders all under a  
directory  I use to track different sites in a project with which I am  
involved.  In particular, one showed 0 unread but 20 total messages.   
Opening that folder, it showed no messages, and looking in the actual  
folder on disk, it also showed no messages.  After lots of playing, I  
simply deleted the folder, but in Balsa and on the disk.  I recreated  
the MailDir mailbox, and Balsa showed blanks (not explicit 0's) for  
number of messages.  Once I actually put a message in the mailbox, and  
then deleted it, it correctly showed 0 total and unread messages.

Clearly a low priority, but I would think if there are no messages in  
either cur, new, or tmp subfolders of a MailDir folder, that would be  
taken and displayed as 0 messages, not just left blank.

Can anyone confirm, and should I open an issue?

Thanks.

Jack