[Bug 77682] Unable to save Event "foo" when calendar is stored on an imap folder

[S2]

Public bug reported:

Binary package hint: kmail

When the calendar, note, contact or task items are stored on an imap folder using kmail (kmail->configure kmail->Misc->Groupware->Enable IMAP Resource Folder Options) those items are not saved to the imap folder and kmail shows a messagebox: Unable to save Event "foo".
Standard output of kmail:
korganizer: WARNING: LockNull::lock() force success. Doesn't actually lock.
kresources: ERROR: Communication problem in ResourceKolab::addIncidence()

** Affects: kdepim (upstream)
     Importance: Unknown
         Status: Unconfirmed
** Affects: kdepim (Ubuntu)
     Importance: Undecided
         Status: Unconfirmed

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Unable to save Event "foo" when calendar is stored on an imap folder
https://launchpad.net/bugs/77682