Array key conflict

In 8.x-1.4, minifyhtml.module line 166, you redefine $callback index minifyhtml_placeholder_callback: this wont work for both textarea and pre:

function minifyhtml_minify(&$page) {
  $callbacks = array(
    'minifyhtml_placeholder_callback'        => '/\\s*<textarea(\\b[^>]*?>[\\s\\S]*?<\\/textarea>)\\s*/i',
    'minifyhtml_placeholder_callback'        => '/\\s*<pre(\\b[^>]*?>[\\s\\S]*?<\\/pre>)\\s*/i',
    'minifyhtml_placeholder_callback_iframe' => '/\\s*<iframe(\\b[^>]*?>[\\s\\S]*?<\\/iframe>)\\s*/i',
    'minifyhtml_placeholder_callback_script' => '/\\s*<script(\\b[^>]*?>[\\s\\S]*?<\\/script>)\\s*/i',
    'minifyhtml_placeholder_callback_style'  => '/\\s*<script(\\b[^>]*?>[\\s\\S]*?<\\/script>)\\s*/i',
    'minifyhtml_remove_html_comment'         => '/<!--([\\s\\S]*?)-->/',
  );