Core Data sharing with other users

Hi everyone

i have an app that has some related entities. throught the different type of tutorial i see that apple incourages to use relationship and inverse relationship in the core data model, and that what i have done. Now, when i reach the point that a user wants to share one particular entity to other users, the inverse relationship spread the share to all the graph of core database shouldn't the inverse relationship be ignored by the share process? if i want to share only that record and the child, not the parent one, should i break the realtionship with the parent (that for me is the inverse relationship) imposing it to a nil value?