agentised gmail gives wrong count in group buffer

[Eric S Fraga <e.fraga@ucl.ac.uk>]

Hello,

I have recently decided to agentise my gmail group.  I use the gnus
agent for my work email and it works (generally) fine.  With gmail, I
find that the group buffer shows my inbox as having 28000+ emails!  This
could actually be the number of emails in my gmail/All Mail folder but
definitely not in my inbox folder.  

If I enter the group and ask it to display all the old messages, I get a
reasonable number of messages (in the tens of messages).  I "archive"
(in gmail itself) and/or "expire" (in gnus) quite aggresively.  Leaving
the group does not cause the number shown in the group buffer to correct
itself.  Neither does M-g on that group in the group buffer.

My previous use of gmail, without the gnus agent, always gave correct
numbers for unread and new messages.

Is there some configuration I need to tweak to get gnus to display the
correct number?

I'm running a very recent (this morning's) version of gnus from git.

Thanks,
eric

-- 
: Eric S Fraga (GnuPG: 0xC89193D8FFFCF67D) in Emacs 24.0.50.1 + No Gnus v0.18