Problem w/ 2.2.4 and unixhierarchysep: yes

[AJ]

Hi,
  I have an odd problem.  I am running 2.2.4 fresh install and I have an 
issue when using a mailbox with a . in the name, such as user/john.smith
I have the unixhierarchysep: yes line in my imapd.conf.
Whenever I try to delete a message or move a message to another folder 
with this mailbox, I generate these errors:

May 21 18:44:58 linux-beta master[2745]: process 2753 exited, signaled 
to death by 11
May 21 18:44:58 linux-beta master[2745]: service imap pid 2753 in BUSY 
state: terminated abnormally

And I get errors on the client that said the connection was terminated 
before the command could complete.

It looks like the files get "copied" but not moved, so it appears to be 
a delete issue.

Users that do not have a . in their mailbox name do not have this 
problem.  Has anyone seen this?  I have another version of 2.2.4 
running, and this does not happen there, but that version was upgraded.
The only other difference is that the version that has this issue is 
running bdb 4.2.x and the other system is running 4.1.x.
I just wanted to throw this out there to see if anyone knows anything 
about this.

Thanks.
AJ
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