Due to network policy, I have to use a SSH tunnel to access port 4190 on my mail server to use sieve scripts. Therefore I set a custom URL in the sieve configuration dialog: sieve://myusername@localhost:4190.

However, I get prompted for the password at every KMail startup instead of having it in KWallet, regardless of the state of the "save password" checkbox. Other KMail passwords are saved to KWallet normally.

Reproducible: Always

Steps to Reproduce:
1. Set a custom URL in the IMAP server's sieve properties (uncheck "Reuse configuration...")
2. Select the "Manage sieve scripts" option in the menu and enter the credentials when prompted.
3. Ensure "save password" is checked
4. Click OK and restart KMail
Actual Results:  
The password is not saved to KWallet and therefore the user is prompted every time.

Expected Results:  
The password should be saved to KWallet.