[horde] problem after upgrade to horde-3.2.1

[David Chang]

Hello
After upgrade to horde-3.2.1,there are many error message while open  
mailbox in imp.
Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 391

Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 391

Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 391

Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 391

Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 647

Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 647

Warning: Attempt to assign property of non-object in  
/usr/local/apache/horde-3.2.1/lib/Horde/MIME.php on line 647

is that bug ?

imapd: cyrus