title: Rows not sorted after concat
body: <p>In the code below I'm attempting to reorder a portion of a dataframe and then join it with another portion. The code will sort but when I attempt to run the last line it returns the unsorted frame. Can anyone help with this?</p>
  <p><strong>Code</strong></p>
  <pre><code>copied = frame[frame['PLAYVAL'].isin([3,4])].copy()
  copied_col = copied['PLAY_EVT']
  
  copied = copied.drop(columns=['PLAY_EVT'],axis=1)
  copied = copied.sort_values(['TIME_ELAPSED','SHOTVAL'],ascending=[True,True]).copy()
  result = pd.concat([copied_col,copied],axis=1)
  </code></pre>
  <p><strong>Frame</strong></p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th></th>
  <th>PLAY_EVT</th>
  <th>TIME_ELAPSED</th>
  <th>INFO</th>
  <th>SHOTVAL</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>0</td>
  <td>1</td>
  <td>132</td>
  <td>1of2</td>
  <td>2</td>
  </tr>
  <tr>
  <td>1</td>
  <td>2</td>
  <td>132</td>
  <td>2of2</td>
  <td>3</td>
  </tr>
  <tr>
  <td>2</td>
  <td>3</td>
  <td>342</td>
  <td>3of3</td>
  <td>6</td>
  </tr>
  <tr>
  <td>3</td>
  <td>4</td>
  <td>342</td>
  <td>2of3</td>
  <td>5</td>
  </tr>
  <tr>
  <td>4</td>
  <td>5</td>
  <td>342</td>
  <td>1of3</td>
  <td>4</td>
  </tr>
  <tr>
  <td>5</td>
  <td>6</td>
  <td>786</td>
  <td>2of2</td>
  <td>3</td>
  </tr>
  <tr>
  <td>6</td>
  <td>7</td>
  <td>786</td>
  <td>1of2</td>
  <td>2</td>
  </tr>
  </tbody>
  </table>
  </div>
  <p><strong>Expected Outcome</strong></p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th></th>
  <th>PLAY_EVT</th>
  <th>TIME_ELAPSED</th>
  <th>INFO</th>
  <th>SHOTVAL</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>0</td>
  <td>1</td>
  <td>132</td>
  <td>1of2</td>
  <td>2</td>
  </tr>
  <tr>
  <td>1</td>
  <td>2</td>
  <td>132</td>
  <td>2of2</td>
  <td>3</td>
  </tr>
  <tr>
  <td>2</td>
  <td>3</td>
  <td>342</td>
  <td>1of3</td>
  <td>4</td>
  </tr>
  <tr>
  <td>3</td>
  <td>4</td>
  <td>342</td>
  <td>2of3</td>
  <td>5</td>
  </tr>
  <tr>
  <td>4</td>
  <td>5</td>
  <td>342</td>
  <td>3of3</td>
  <td>6</td>
  </tr>
  <tr>
  <td>5</td>
  <td>6</td>
  <td>786</td>
  <td>1of2</td>
  <td>2</td>
  </tr>
  <tr>
  <td>6</td>
  <td>7</td>
  <td>786</td>
  <td>2of2</td>
  <td>3</td>
  </tr>
  </tbody>
  </table>
  </div>