title: Picasso loads pictures to the wrong imageview in a list adapter
body: <p>I'm loading an image from a server to a list view item using picasso like this:</p>
  
  <pre><code>public View getView(int position, View convertView, ViewGroup parent) {
      LayoutInflater inflater = (LayoutInflater) context
              .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      View participantView;
      if(convertView == null) {
          participantView = inflater.inflate(R.layout.participant_item, parent, false);
      } else {
          participantView = convertView;
      }
  
      TextView textView = (TextView) participantView.findViewById(R.id.participantName);
      textView.setText(getItem(position).getName());
      ImageView imageView = (ImageView) participantView.findViewById(R.id.participantImage);
      String profilePic = getItem(position).getProfilePic();
  
      if(!profilePic.equals("None")) {
          Log.d("tom.debug", "creating picture for user: " + getItem(position).getName());
          Picasso.with(this.context)
              .load(urlToProfilePics + profilePic)
              .placeholder(R.drawable.sample_0)
              .resize(52, 52)
              .into(imageView);
      } else {
          //load the place holder into the image view
          Picasso.with(this.context).load(R.drawable.sample_0);
      }
  
      if(!getItem(position).isHere()) {
          imageView.setColorFilter(Color.DKGRAY, PorterDuff.Mode.MULTIPLY);
      }
  
      return participantView;
  }
  </code></pre>
  
  <p>The debug log under the if statement only fires for users that really have a profile picture. (Users that don't have will get a value of <code>None</code>).</p>
  
  <p>However, <strong>some</strong> of the other list view items (that don't have a profile pic) also get the picture loaded.</p>
  
  <p>Another useful fact (I think): The items that get the bug changes when scrolling up and down the list.</p>
  
  <p>I'm not sure what I'm missing here.</p>