[RCU] 1.0.3 don't show messages in Spam folder (but there are)

Hi,

I'm running Roundcube 1.0.3 with dovecot as IMAP server. Some users when login into webmail don't see any messages in the Spam folder (but the messages are on the server and via "telnet" with "EXAMINE Spam" they are present).

The only way to show these messages are to select show "Unread" and after show "All", so Roundcube show it.

The problem seems to be that Roundcube does not controll at all the Spam folder, if I login via webmail and click on the Spam folder, after I login via telnet in IMAP and do "EXAMINE Spam" the messagges are mark as "Recent". After the telnet test also Roundcube can see the messages.

How can fix?