From a1d91789d7cb4b22caef23c1a71ebacff588c4a5 Mon Sep 17 00:00:00 2001
From: YvetteNikolov <yvettenikolov@gmail.com>
Date: Wed, 11 Feb 2026 19:44:56 +0100
Subject: [PATCH] fix: add check for _GET in DuplicatePost class

---
 src/DuplicatePost.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/DuplicatePost.php b/src/DuplicatePost.php
index aea458b..169c839 100644
--- a/src/DuplicatePost.php
+++ b/src/DuplicatePost.php
@@ -19,6 +19,10 @@ public function saveRevisionForRewriteAndRepublishCopy(): void
 			return;
 		}
 
+		if (! isset($_GET['post'])) {
+			return;
+		}
+
 		$postID = intval($_GET['post']);
 		$post = get_post($postID);
 		if (! $post instanceof \WP_Post) {