[4.8.3] How do I empty an array of OnRep_ variables AFTER they have been Replicated?

How do I empty an array of OnRep_ variables AFTER they have been Replicated?

I tried calling a server function directly from the OnRep_ function, but the actor in question is not always owned by the client and in that case the server function is not called.

I know that OnRep_ occurs at the end of the tick, so I can’t clear the variable from the server until this event occurs.
Is there a function connected to the end of the tick I can override?