title: UWP - TextBox is missing the line feed (\n) character in Windows 10 build 14393
body: <p>After retargeting my UWP project to Windows 10 build 14393 (Anniversary update) I found that the line feed (<strong>\n</strong>) character is missing from the output Text when I press enter in a TextBox with <code>AcceptsReturn="True"</code>. When I retarget back to 10240, pressing enter in the TextBox produces the expected CR+LF characters i.e. <strong>\r\n</strong>.</p>
  
  <p>If this is a feature and not a bug, what can I do to bring back the classic TextBox behavior when pressing enter adds both CR and LF characters to the output Text?</p>