Empty Trash on Thunderbird not getting propagated to replica

[Eric Knudstrup]

I have a 2.4.20 IMAP server I'm in the process of migrating to a 3.0.13 
server on a different machine, using replication to move the database.

This server was a 2.4.7 server until recently, when I upgraded it to 
2.4.20 to make sure it was on the latest in its series.

In order to get all of the data to replicate, I had to reconstruct all 
of the mailboxes on the 2.4.20 server.

Then I moved all of the old messages out of a Trash folder into my 
Deleted Messages folder which has been delegated as the Trash folder.  
To make Apple Mail happy.

After I hit "Empty Trash" in Thunderbird, these messages were all 
expunged and apparently deleted from the 2.4.20 server.

After letting it sit, I'm still not seeing that having propagated to the 
3.0.13 system.

What am I missing?