From 926697d183b53a87d643569dc9df98507aab4439 Mon Sep 17 00:00:00 2001
From: jf-cbd <jf-cbd@users.noreply.github.com>
Date: Fri, 14 Aug 2026 10:39:42 +0200
Subject: [PATCH] Rollback after reading HTML so it can throw error later in
 the PHP execution if needed

---
 application/utils.inc.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/application/utils.inc.php b/application/utils.inc.php
index 8e769d17a..dfcfd07ef 100644
--- a/application/utils.inc.php
+++ b/application/utils.inc.php
@@ -3038,9 +3038,14 @@ TXT
 		$aMentionedObjects = [];
 		$aMentionAllowedClasses = MetaModel::GetConfig()->Get('mentions.allowed_classes');
 		$oDom = new \DOMDocument();
-		libxml_use_internal_errors(true); // to keep processing even in case of "invalid" HTML, cf. testGetMentionedObjectsFromText
-		$oDom->loadHTML('<?xml encoding="UTF-8">'.$sText);
+		$bPreviousUseInternalErrors = libxml_use_internal_errors(true); // to keep processing even in case of "invalid" HTML, cf. testGetMentionedObjectsFromText
 
+		try {
+			$oDom->loadHTML('<?xml encoding="UTF-8">'.$sText);
+		} finally {
+			libxml_clear_errors();
+			libxml_use_internal_errors($bPreviousUseInternalErrors);
+		}
 		$oXpath = new \DOMXPath($oDom);
 		$oNodes = $oXpath->query('//a[@data-object-class and @data-object-key]');