From 4dccbdb5fb38242e78e35f98d4ea21130f264512 Mon Sep 17 00:00:00 2001
From: trevor-signal <131492920+trevor-signal@users.noreply.github.com>
Date: Wed, 17 Sep 2025 18:51:21 -0400
Subject: [PATCH] Improve handling of invalid incrementalMac during backup
 import

---
 ts/jobs/AttachmentDownloadManager.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ts/jobs/AttachmentDownloadManager.ts b/ts/jobs/AttachmentDownloadManager.ts
index 57bca7981a..3ecc465d13 100644
--- a/ts/jobs/AttachmentDownloadManager.ts
+++ b/ts/jobs/AttachmentDownloadManager.ts
@@ -834,6 +834,9 @@ export async function runDownloadAttachmentJobInner({
     );
     return { downloadedVariant: AttachmentVariant.Default };
   } catch (error) {
+    if (isIncrementalMacVerificationError(error)) {
+      throw error;
+    }
     if (mightHaveBackupThumbnailToDownload && !attemptBackupThumbnailFirst) {
       log.error(
         `${logId}: failed to download fullsize attachment, falling back to backup thumbnail`,