title: UIImage view losing images while navigating back
body: <p>Look at this GIF of image view loses images while navigating back:</p>
  
  <p><img src="https://i.stack.imgur.com/NovFj.gif" alt="image view loses images while navigating back"></p>
  
  <p>I fill in detailsVC and press next to upload images. As i upload images and press Back button on navigation bar and then again press next to arrive at this view controller, images previously selected are removed. </p>
  
  <p>I want that images selected should stay there regardless of navigation. View controller should sustain those images on imageviews. </p>