Re: odd behavior with empty sentbox

On 2021.10.22 17:36, Jack via balsa-list wrote:
> On 2021.10.22 14:25, Jack via balsa-list wrote:
>> Hello all,
>> 
>> It's been quiet here, so I thought I'd post about a new mystery  
>> which I've been noticing for the past week or so.  I have no real  
>> idea if this is due to some recent change (git master) or if I just  
>> never tripped over it before.
>> 
>> My Sentbox folder is mapped to a mbox file sent-mail in my main mail  
>> directory.  If I delete all messages from that folder and expunge  
>> them, everthing seems fine.  However, if I then quit balsa and  
>> restart it, the Unread and Total numbers in the mailbox pane are  
>> blank (not 0) and Balsa thinks there is an unread message in that  
>> folder.  If I click "Next unread" Balsa opens that folder, which is  
>> empty, the message numbers stay blank, and the mailbox name in the  
>> tab is shown in bold.  In addition, if I hit "Next unread" again,  
>> nothing happens, even if there is an unread message elsewhere.  If I  
>> select a different folder and hit "Next unread" it may go back to  
>> Sentbox or the other folder with an unread message - I assume which  
>> it chooses depends on the order in which it checks all mailboxes for  
>> unread messages.
>> 
>> My assumption here is that when the last message is deleted from  
>> sent-mail, rather than creating an empty file, the file is just  
>> deleted (or at least not created when it is "rewritten" with no  
>> messages.
>> 
>> I have not yet dug into the code to see if I can actually confirm  
>> any of these assumptions.
>> 
>> Thanks for any thoughts or suggestions.
> I checked more carefully, and sent-mail is not deleted, it does exist  
> as an empty file.  However, outbox and trash are also empty files  
> right now and are recognized and behave as expected.  Sentbox did  
> have "subscribe to new mail check" selected, but deslecting it make  
> no apparent difference.

As usual, things seem to change.  Sentbox is now behaving normally  
again - no longer claiming any unread messages in an empty folder.   
However, Trash is now claiming 1 total message (0 unread) although it  
is completely empty, a 0 length file.  No problems with this, just  
perplexing.

Jack