Return calculated id and don't save it if the logger has been previously saved
Return calculated id and don't save it if the logger has been previously saved

indirectlylit/kolibri,learningequality/kolibri,mrpau/kolibri,lyw07/kolibri,learningequality/kolibri,mrpau/kolibri,indirectlylit/kolibri,lyw07/kolibri,indirectlylit/kolibri,learningequality/kolibri,learningequality/kolibri,indirectlylit/kolibri,lyw07/kolibri,mrpau/kolibri,lyw07/kolibri,mrpau/kolibri