Fix: controller: don't record pending notifies in CIB

0fb8547 fixed a bug that recorded pending clone notifications as successfully
completed in the CIB, by recording them as pending. However, we don't record
notification completions in the CIB, so the pending entries stay in the CIB
even after the notification completes. Clone notifications should not be
recorded in the CIB at all.

Fixes CLBZ#5359