[imp] Forwarding a message with attachments is broken

[Ahmed]

When I try to forward a message with an attachment (only tried with binary 
files) I get a persistent blank compose window and the following error messages 
in the syslog:

May  7 09:23:13 ns httpd: PHP Warning:  Bad message number 
in /var/www/horde/imp/lib/IMP.php on line 826
May  7 09:23:13 ns httpd: PHP Warning:  Undefined index:   
in /var/www/horde/lib/MIME/Structure.php on line 120
May  7 09:23:13 ns httpd: PHP Fatal error:  Call to a member function on a non-
object in /var/www/horde/imp/lib/IMP.php on line 845

and no message is sent. Forwarding messages without an attachement works fine.

configuration: Latest CVS horde/imp Tuesday 6.5.02 8:00 GMT

Any ideas?

Ahmed...