Degreasing correction

Author: seiyuinoue

src/ParsedContent.php

@@ -514,7 +514,7 @@ public static function getDeprecated($post_id = null) {
 
         $deprecated = wp_filter_object_list($tags, ['name' => 'deprecated']);
 
-        if (empty($deprecated) || !isset($deprecated['content'])) {
+        if (empty($deprecated)) {
             return [
                 'content' => '',
                 'description' => '',
@@ -523,6 +523,13 @@ public static function getDeprecated($post_id = null) {
 
         $deprecated = array_shift($deprecated);
 
+        if (!isset($deprecated['content'])) {
+            return [
+                'content' => '',
+                'description' => '',
+            ];
+        }
+
         return [
             'content' => htmlspecialchars($deprecated['content']),
             'description' => htmlspecialchars(isset($deprecated['description']) ? $deprecated['description'] : ''),