Problem with IMAP folder browsing

[Brian Weaver <brianweaver@xxxxxxxxx>]

I've been using google and trying to find the answer to my question in
the FAQ, but so far I've hit a dead end. Doesn't mean that it's not
there but if it is I haven't found it yet.

I've been using mutt for years now and I just recently moved my mail
over to Debian Sarge. The version of mutt that came with sarge is
1.5.9-2:

# dpkg -s mutt
Package: mutt
Status: install ok installed
Priority: standard
Section: mail
Installed-Size: 3768
Maintainer: Marco d'Itri <md@xxxxxxxx>
Architecture: i386
Version: 1.5.9-2
Replaces: mutt-i, mutt-utf8
Provides: mail-reader, imap-client
Depends: libc6 (>= 2.3.2.ds1-21), libdb4.3, libgnutls11 (>= 1.0.16),
libidn11 (>= 0.5.13), libncursesw5 (>= 5.4-1), libsasl2 (>= 2.1.19),
exim4 | mail-transport-agent
Recommends: locales, mime-support
Suggests: urlview, aspell | ispell, gnupg, mixmaster, openssl,
ca-certificates
Conflicts: suidmanager (<< 0.50), mutt-i, mutt-utf8
Conffiles:
 /etc/Muttrc fc8949a6ef961df08ac53433698d19b6
 Description: Text-based mailreader supporting MIME, GPG, PGP and
 threading
  Mutt is a sophisticated text-based Mail User Agent. Some highlights:
    o MIME support (including RFC1522 encoding/decoding of 8-bit message
        headers and UTF-8 support).
    o PGP/MIME support (RFC 2015).
    o Advanced IMAP client supporting SSL encryption and SASL
      authentication.
    o POP3 support.
    o Mailbox threading (both strict and non-strict).
    o Default keybindings are much like ELM.
    o Keybindings are configurable; Mush and PINE-like
      ones are provided as examples.
    o Handles MMDF, MH and Maildir in addition to
      regular mbox format.
    o Messages may be (indefinitely) postponed.
    o Colour support.
    o Highly configurable through easy but powerful rc file.

The imap server that I'm using is dbmail, version 2.0.7. I've been using
mutt version 1.4 on a Mandrake 9.2 server with dbmail for well over a
year now with smashing success. The only problem I've encountered with
the new version of mutt on debian is when trying to browse imap folders.

I get the root folder OK, but when I select a sub folder with the
<enter> key all that shows up is '/..' as the sole entry. I've changed
the file mask to '.' but no such luck. If I hit <enter> while the '/..'
entry is highlighted then the folder changes to something like:

  'Lists/////////'

Notice the large number of trailing '/' characters. I cranked up the
logging of DBMail and got the following snippet from the logs:

Jan  4 12:42:44 localhost dbmail/imap4d[27190]: IMAPClientHandler(): line read 
for PID 27190
Jan  4 12:42:44 localhost dbmail/imap4d[27190]: COMMAND: [a0079 LIST "" 
"Lists/////////%"]
Jan  4 12:42:44 localhost dbmail/imap4d[27190]: arg[0]: ''
Jan  4 12:42:44 localhost dbmail/imap4d[27190]: arg[1]: 'Lists/////////%'
Jan  4 12:42:44 localhost dbmail/imap4d[27190]: IMAPClientHandler(): Executing 
command list...
Jan  4 12:42:44 localhost dbmail/imap4d[27190]: ic_list(): build the pattern: 
[^Lists/////////[^\/]*$]
Jan  4 12:42:44 localhost dbmail/imap4d[27190]: 
db.c,db_list_mailboxes_by_regex: in func

Is this a known bug or do I have a bad configuration option set. I've
tried reading through the changelog for the 1.5 series, but nothing seem
to single out any type of issue like I'm seeing.

Thanks

-Brian Weaver