Ticket #40581: #40581.2.patch

wp-admin/includes/class-wp-screen.php

@@ -1065 +1065 @@
                         return;
                 }
 
+                $special = array( '_title', 'cb', 'comment', 'media', 'name', 'title', 'username', 'blogname' );
+                if ( count( array_intersect ( $special, array_keys( $columns ) ) ) == count( $columns ) ) // if all columns are "special", no columns in screen options
+                {
+                        return;
+                }
+
                 $legend = ! empty( $columns['_title'] ) ? $columns['_title'] : __( 'Columns' );
                 ?>
                 <fieldset class="metabox-prefs">
                 <legend><?php echo $legend; ?></legend>
                 <?php
-                $special = array( '_title', 'cb', 'comment', 'media', 'name', 'title', 'username', 'blogname' );
 
                 foreach ( $columns as $column => $title ) {
                         // Can't hide these for they are special