title: monorestore issue BadValue: object to insert exceeds cappedMaxSize
body: <p>I use Meteor with WireTiger 3.2.12 </p>
  
  <p>I've made dump using monogdump
  When I'm trying to restore it, on some documents I recieved this:</p>
  
  <blockquote>
    <p>error: write to oplog failed: BadValue: object to insert exceeds
    cappedMaxSize</p>
  </blockquote>
  
  <p>This collection is not 'Capped' (I tested it with db.my_collection_name.stats()["capped"])</p>
  
  <p>How it's possible to import such documents? </p>
  
  <p>Thanks in advance</p>