Offlineimap 6.5.5 BUG Vs 6.5.4

[Windstyle Sistemi]

Good day.
Report a difference in the functioning of version 6.5.5 compared to 6.5.4, which I think might be a bug.
The configuration is the following:

[general]
accounts = test
ui = Blinkenlights
socktimeout = 90
maxsyncaccounts = 30
[Account test]
localrepository = local.test
remoterepository = remote.test
status_backend = sqlite
autorefresh = 5
quick = 6
[Repository local.test]
type = IMAP
remotehost = x.x.x.x
remoteuser = test at test
remotepass = XXXXXXX
folderfilter = lambda foldername: foldername in ['INBOX', Sent']
holdconnectionopen = yes
keepalice = 30
[Repository remote. test]
type = IMAP
remotehost = x.x.x.x
remoteuser = test at test
remotepass = XXXXXXXXX
folderfilter = lambda foldername: foldername in ['INBOX', 'Sent']
holdconnectionopen = yes
keepalice = 30

With version 6.5.4 everything works perfectly.
With the 6.5.5 messages are shown on the remote part of the local and vice versa losing formatting "multipart"; or mail will be repackaged with all the text RAW (raw data) header included.
The mailserver used for the local and remote is HMAIL
Thanks, any suggestion to make operational the new version as the previous one is welcome.
Yours sincerely.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://alioth-lists.debian.net/pipermail/offlineimap-project/attachments/20140531/d13aab75/attachment-0002.html>