Re: RelationshipUpdate.Operation.OPERATION_DELETE: > DELETE will delete the relationship. If the relationship does not exist, this operation will no-op. In trying to maintain one-to-one and many-to-one relationships, I need to manually construct "replace" operations, deleting the previous value and writing a new one atomically. I find myself writing a lot of preconditions to make a

WriteRelationships

delete fail if the relationship doesn't exist. What are the odds we get a new DELETE operation that does fail if the relationship doesn't exist? It'd be a great help in this case, one I imagine is pretty common.