From 64ed9b175f3f34a99264aab51808ef77f905d4a1 Mon Sep 17 00:00:00 2001
From: zjx20 <zhoujianxiong2@gmail.com>
Date: Tue, 22 Jul 2025 15:04:19 +0800
Subject: [PATCH] s3: set useAlreadyExists to false for Alibaba OSS

---
 backend/s3/s3.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/s3/s3.go b/backend/s3/s3.go
index 0d9ab396c..a1379da3d 100644
--- a/backend/s3/s3.go
+++ b/backend/s3/s3.go
@@ -3628,7 +3628,7 @@ func setQuirks(opt *Options) {
 		useUnsignedPayload = false // AWS has trailer support which means it adds checksums in the trailer without seeking
 	case "Alibaba":
 		useMultipartEtag = false // Alibaba seems to calculate multipart Etags differently from AWS
-		useAlreadyExists = true  // returns 200 OK
+		useAlreadyExists = false // returns BucketAlreadyExists
 	case "HuaweiOBS":
 		// Huawei OBS PFS is not support listObjectV2, and if turn on the urlEncodeListing, marker will not work and keep list same page forever.
 		urlEncodeListings = false