title: Glide rounded corner on notifydatasetchanged() is lost and becoming square
body: <p>I'm loading image url using glide and applying rounded corner transformation. It works fine for first setup of recyclerview. Later when i call <code>notifydatasetchanged()</code> after pagination it becomes square. What am I missing?</p>
  
  <pre><code>Glide.with(mContext)
        .load(primary.getpSmallImage())
        .bitmapTransform(new RoundedCornersTransformation(mContext, 8, 0, RoundedCornersTransformation.CornerType.ALL))
        .placeholder(R.drawable.ic_ph_small)
        .into(thumbnailImage);
  </code></pre>