title: Checkbox unchecks automatically
body: <p>I am using the checkbox of the <a href="https://github.com/navasmdc/MaterialDesignLibrary" rel="nofollow">Material Design library</a> by navasmdc. </p>
  
  <p>When the fragment with the checkbox is loaded the checkbox gets checked (thats correct) but then it immediately gets unchecked (that's not what I want to)</p>
  
  <p>I have put it into a recycler view item. 
  So I set the checkbox inside the onBindViewHolder like that:</p>
  
  <pre><code>   @Override
      public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
  
          ReviewItem current = data.get(position);
  
          switch (holder.getItemViewType()) {
  
              case TYPE_SIMPLE:
                  ViewHolderSimple simpleViewHolder = (ViewHolderSimple) holder;
  
                  simpleViewHolder.title.setText(current.getTitle());
                  simpleViewHolder.subtitle.setText("Wert: " + valuesOfMaschine.get(position));
  
                  simpleViewHolder.image.setImageResource(R.drawable.ic_starticon);
  
                  if(Integer.parseInt(valuesOfMaschine.get(position)) == 0)
                  {
                      //simpleViewHolder.checkbox.setChecked(false);
                  } else if(Integer.parseInt(valuesOfMaschine.get(position)) == 1){
                      simpleViewHolder.checkbox.setChecked(true);
                  }
  
                  break;
  
              case TYPE_DETAILED:
                  ViewHolderDetailed detailedViewHolder = (ViewHolderDetailed) holder;
  
                  detailedViewHolder.title.setText(current.getTitle());
                  detailedViewHolder.subtitle.setText("Wert: " + valuesOfMaschine.get(position));
  
                  detailedViewHolder.image.setImageResource(R.drawable.ic_starticon);
  
                  detailedViewHolder.slider.setValue(Integer.parseInt(valuesOfMaschine.get(position)));
  
                  break;
          }
      }
  </code></pre>
  
  <p>I see no part in my code that should be able to uncheck the checkbox again... </p>
  
  <p>the xml of my checkbox: </p>
  
  <pre><code> &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                      xmlns:materialdesign="http://schemas.android.com/apk/res-auto"
                      android:layout_width="match_parent"
                      android:layout_height="match_parent"
                      &gt;
                      &lt;com.gc.materialdesign.views.CheckBox
                          android:id="@+id/review_item_checkbox_simple"
                          android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:background="#1E88E5"
                          /&gt;
  
                  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>Do I miss something ?</p>