Version:           4.7 (using KDE 4.7.3) 
OS:                Linux

I upgraded from Fedora 14 to 16 on my laptop, and this is the first time akonadi is used as KMail's backend.
I "freeze" my laptop (suspend), and then wake it up. All the KDE session seems OK. However, kmail does not refresh any folder, and I do not see the new emails in my IMAP resource. Even when I click on an existing message in a list, I cannot see its content.

the method I found to get the things working back again was to 
1) stop kmail
2) restart akonadi completely using "akonadictl restart" in commandline
3) start kmail again

if I don't stop kmail before restarting akonadi, I get strange artifacts such as only a part of messages being visinle

Reproducible: Always

Steps to Reproduce:
1) have kmail running, with IMAP resource
2) hibernate, and then "unfreeze" your laptop

Actual Results:  
folders do not refresh; "refresh folder" doesn't do anything

Expected Results:  
After "unfreezing" and checking an email, I should see new emails in my mailbox

OS: Linux (x86_64) release 3.1.1-2.fc16.x86_64
Compiler: gcc