Ticket #40188: 40188.5.patch

src/wp-admin/css/themes.css

@@ -482 +482 @@
         -webkit-box-shadow: 0 1px 20px 5px rgba(0, 0, 0, 0.1);
         box-shadow: 0 1px 20px 5px rgba(0, 0, 0, 0.1);
         z-index: 10000; /* Over WP Pointers. */
+
         -webkit-box-sizing: border-box;
         -moz-box-sizing: border-box;
         box-sizing: border-box;

src/wp-admin/includes/class-wp-comments-list-table.php

@@ -327 +327 @@
 ?>
                 <div class="alignleft actions">
 <?php
-                if ( 'top' === $which ) {
+                if ( 'top' === $which && $this->has_comments() ) {
 ?>
                         <label class="screen-reader-text" for="filter-by-comment-type"><?php _e( 'Filter by comment type' ); ?></label>
                         <select id="filter-by-comment-type" name="comment_type">