Ticket #56262: 56262.diff

src/wp-includes/class-wp-list-util.php

@@ -164 +164 @@
                          */
                         foreach ( $this->output as $key => $value ) {
                                 if ( is_object( $value ) ) {
-                                        $newlist[ $key ] = $value->$field;
+                                        $newlist[ $key ] = isset( $value->$field ) ? $value->$field : $value;
                                 } else {
-                                        $newlist[ $key ] = $value[ $field ];
+                                        $newlist[ $key ] = isset( $value[ $field ] ) ? $value[ $field ] : $value;
                                 }
                         }
 
@@ -182 +182 @@
                 foreach ( $this->output as $value ) {
                         if ( is_object( $value ) ) {
                                 if ( isset( $value->$index_key ) ) {
-                                        $newlist[ $value->$index_key ] = $value->$field;
+                                        $newlist[ $value->$index_key ] = isset( $value->$field ) ? $value->$field : $value;
                                 } else {
-                                        $newlist[] = $value->$field;
+                                        $newlist[] = isset( $value->$field ) ? $value->$field : $value;
                                 }
                         } else {
                                 if ( isset( $value[ $index_key ] ) ) {
-                                        $newlist[ $value[ $index_key ] ] = $value[ $field ];
+                                        $newlist[ $value[ $index_key ] ] = isset( $value[ $field ] ) ? $value[ $field ] : $value;
                                 } else {
-                                        $newlist[] = $value[ $field ];
+                                        $newlist[] = isset( $value[ $field ] ) ? $value[ $field ] : $value;
                                 }
                         }
                 }