title: Fresco - Cancel Prefetch Requests
body: <p>In my app I was prefetching images so they load faster when user scrolls using <code>prefetchToBitmapCache</code>. Now when user applies a filter, these prefetches remain in pipeline and slow down the loading of new images.</p>
  
  <p>How I am prefetching: When use scrolls down through images, I prefetch <strong>X</strong> number of images after <code>LinearLayoutManager.findLastVisibleItemPosition()</code>'s value. I need a way to cancel all these prefetches when user applies a filter. Is there a way to do this or a better way of prefetching?</p>