Ticket #33710: 33710.2.patch

src/wp-admin/edit-form-comment.php

@@ -119 +119 @@
 <?php
 if ( $comment->comment_parent ) :
         $parent      = get_comment( $comment->comment_parent );
-        $parent_link = esc_url( get_comment_link( $comment->comment_parent ) );
-        $name        = get_comment_author( $parent->comment_ID );
-?>
-<div class="misc-pub-section misc-pub-reply-to">
-        <?php printf(
-                /* translators: comment link */
-                __( 'In reply to: %s' ),
-                '<b><a href="' . $parent_link . '">' . $name . '</a></b>'
-        ); ?>
-</div>
-<?php endif; ?>
+        if ( $parent ) :
+                $parent_link = esc_url( get_comment_link( $comment->comment_parent ) );
+                $name        = get_comment_author( $parent->comment_ID );
+        ?>
+        <div class="misc-pub-section misc-pub-reply-to">
+                <?php printf(
+                        /* translators: comment link */
+                        __( 'In reply to: %s' ),
+                        '<b><a href="' . $parent_link . '">' . $name . '</a></b>'
+                ); ?>
+        </div>
+<?php endif;
+endif; ?>
 
 <?php
         /**

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

@@ -607 +607 @@
 
                 if ( $comment->comment_parent ) {
                         $parent = get_comment( $comment->comment_parent );
-                        $parent_link = esc_url( get_comment_link( $parent ) );
-                        $name = get_comment_author( $parent );
-                        printf( ' | '.__( 'In reply to <a href="%1$s">%2$s</a>.' ), $parent_link, $name );
+                        if ( $parent ) {
+                                $parent_link = esc_url( get_comment_link( $parent ) );
+                                $name = get_comment_author( $parent );
+                                printf( ' | '.__( 'In reply to <a href="%1$s">%2$s</a>.' ), $parent_link, $name );
+                        }
                 }
 
                 echo '</div>';