[Dovecot] Shared INBOX change in v2.1.6?

[Timo Sirainen]

Previously Dovecot has shown shared INBOX like:

* LIST (\HasChildren) "/" "shared/tss2"
* LIST (\HasNoChildren) "/" "shared/tss2/INBOX"
* LIST (\HasNoChildren) "/" "shared/tss2/foo"

The last change in hg makes it return simply (same as with Cyrus):

* LIST (\HasChildren) "/" "shared/tss2"
* LIST (\HasNoChildren) "/" "shared/tss2/foo"

This behavior could be made optional, but does anyone actually want it
to work the old way (and why)? I'd rather not add an option that isn't
useful to anyone.

I think older Dovecot versions have allowed opening both shared/tss2 and
shared/tss2/INBOX, but at least in v2.1 that code was broken. With the
last change it's still possible to open both of them, the
shared/tss2/INBOX just isn't visible in LIST output.