From 516aea5562bbccd3be20d8bcc3e7993ffd7f00c9 Mon Sep 17 00:00:00 2001
From: Calixte Denizet <calixte.denizet@gmail.com>
Date: Fri, 21 Nov 2025 17:53:38 +0100
Subject: [PATCH] [XFA] Set default max value in occur tag to -1 (bug 1998843)

---
 src/core/xfa/template.js          |  2 +-
 test/pdfs/xfa_bug1998843.pdf.link |  1 +
 test/test_manifest.json           | 10 ++++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 test/pdfs/xfa_bug1998843.pdf.link

diff --git a/src/core/xfa/template.js b/src/core/xfa/template.js
index 7e7eaac4b..61322dcd9 100644
--- a/src/core/xfa/template.js
+++ b/src/core/xfa/template.js
@@ -3899,7 +3899,7 @@ class Occur extends XFAObject {
       attributes.max !== ""
         ? getInteger({
             data: attributes.max,
-            defaultValue: 1,
+            defaultValue: -1,
             validate: x => true,
           })
         : "";
diff --git a/test/pdfs/xfa_bug1998843.pdf.link b/test/pdfs/xfa_bug1998843.pdf.link
new file mode 100644
index 000000000..a11e52686
--- /dev/null
+++ b/test/pdfs/xfa_bug1998843.pdf.link
@@ -0,0 +1 @@
+https://bugzilla.mozilla.org/attachment.cgi?id=9525217
diff --git a/test/test_manifest.json b/test/test_manifest.json
index f864c2be9..ac99e5ecb 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -13067,5 +13067,15 @@
     "type": "extract",
     "includePages": [0],
     "pageMapping": { "1": 1 }
+  },
+  {
+    "id": "xfa_bug1998843",
+    "file": "pdfs/xfa_bug1998843.pdf",
+    "md5": "b7b25e5b05b2b903d0a6727c9f962a91",
+    "link": true,
+    "rounds": 1,
+    "enableXfa": true,
+    "lastPage": 1,
+    "type": "eq"
   }
 ]