From b0264bdb902f448e57529b3dbe444d1d539814e1 Mon Sep 17 00:00:00 2001
From: jiuker <2818723467@qq.com>
Date: Wed, 29 Nov 2023 00:31:33 +0800
Subject: [PATCH] preserve null version delete marker on suspended bucket
 version (#18547)

---
 cmd/xl-storage-format-v2.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/cmd/xl-storage-format-v2.go b/cmd/xl-storage-format-v2.go
index 72a058f05..b9b84068e 100644
--- a/cmd/xl-storage-format-v2.go
+++ b/cmd/xl-storage-format-v2.go
@@ -1415,7 +1415,10 @@ func (x *xlMetaV2) DeleteVersion(fi FileInfo) (string, error) {
 			if fi.MarkDeleted && (fi.VersionPurgeStatus().Empty() || (fi.VersionPurgeStatus() != Complete)) {
 				err = x.addVersion(ventry)
 			}
-			return "", err
+			// if we remove null version. we should try to add null version to top layer.
+			if uv.String() != emptyUUID {
+				return "", err
+			}
 		case ObjectType:
 			if updateVersion && !fi.Deleted {
 				ver, err := x.getIdx(i)