[Dovecot] odd password issue using ]...[

[Tom Shannon]

Hello folks,

I'm using 0.99.11 with sendmail and shadow passwords.

I've discovered an odd bug with password characters.
Password         Result
[dove]               works
]dove[               fails

You can substitute anything for the dove part so its the inverted ] [ 
that's causing some sort of problem.

For the failed login I see this in the dovecot logs ...
imap-login: Mar 03 15:54:10 Info: Login: test [xxx.xxx.xxx.xxx]
dovecot-auth: Mar 03 15:54:11 Info: Login process 23 disconnected

Any ideas?

thanks,
Tom