KJots stores books as collections with a display-attribute, which is lost when kolab syncs the collection. The created folder has a randomized name. The Kolab Resource should either transport the display-attribute, or not support collections at all and store the structure as PIM-Item relation. Reproducible: Always
This bug has only been reported for versions older than KDEPIM 4.14 (at most akonadi-1.3). Can anyone tell if this bug still present? If noone confirms this bug for a recent version of akonadi (part of KDE Applications 15.08 or later), it gets closed in about three months.
Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.0 aka 15.08), please open a new one unless it already exists. Thank you for all your input.