Is this expected behavior

So we've been incorporating Revisions inside our ERP using the Revisions from the drawing. The issue we have is that new drawings created from existing drawings containing previous revisions seem to keep their revision numbering inside their property. 

So a totally new part or assembly, made from an existing one that had an existing revision table inside, will create it's drawing from the previous part/assembly while retaining everything inside it. Even if the revision table is then removed inside the new drawing, the property inside the drawing will remain there, which is fallacious.