Dear Maintainer,

I have a dovecot system holding Maildir mailboxes on a small server.

On this server, there is no subfolder hierarchy, instead inside the top level
Maildir directory, which represents the INBOX, there are sub directories whose names are
separated by the "." character to denote level.

I have some folders if this Maildir with directory names .parent.subfolder1, .parent.subfolder2
etc where there is no actual directory called .parent.  Icedove correctly shows
the parent->subfolder relationship.

However - when I attempt to create a new subfolder of parent, it don't get this
occuring, instead a new folder is created at the same level as the parent with
the name "parent^subfolder"

I checked this with wireshark, and indeed the request to create a new folder is
sent with "parent^subfolder" (without the quotes) as the name.

If parent does have an actual folder, the new subfolder is correctly created.