code: void forceStorageMutation(Item itm, VBucketCoordinates coords) {
          forceMutation(itm.getKeySpec().vbId, itm, coords, false);
      }
docs: Force a storage of an item to the cache.
  
  This assumes the current object belongs to a replica, as it will blindly
  assume information passed here is authoritative.
  
  @param itm The item to mutate (should be a copy of the original)
  @param coords Coordinate info