An error might occur if you delete a saved child associated with a saved root through the sibling lookup and without submitting the changes. Errors may arise from unhandled internal references or constraints. For example, failure to update the state in the parent or sibling entities appropriately can lead to data inconsistencies or constraint violations in the database.

An error might occur if you delete an unsaved child associated with a saved root without submitting the changes. This action might cause errors as the system expects changes involving saved entities to be finalized with commits or rollbacks. Omitting these steps can disrupt the integrity and consistency of the data model, as the deletion operation affects the in-memory state without confirmation in the database.