Fix:s3 compatibility (#1617)

Co-authored-by: houseme <housemecn@gmail.com>
Co-authored-by: loverustfs <hello@rustfs.com>
Co-authored-by: heihutu <30542132+heihutu@users.noreply.github.com>

crates/ecstore/src/bucket/tagging/mod.rs

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 use s3s::dto::Tag;
+use std::cmp::Ordering;
 use std::collections::HashMap;
 use url::form_urlencoded;
 
@@ -22,7 +23,7 @@ pub fn decode_tags(tags: &str) -> Vec<Tag> {
     let mut list = Vec::new();
 
     for (k, v) in values {
-        if k.is_empty() || v.is_empty() {
+        if k.is_empty() {
             continue;
         }
 
@@ -31,7 +32,13 @@ pub fn decode_tags(tags: &str) -> Vec<Tag> {
             value: Some(v.to_string()),
         });
     }
-
+    // use pattern matching instead of unwrap(), no panic even if the key becomes None later
+    list.sort_by(|a, b| match (a.key.as_ref(), b.key.as_ref()) {
+        (Some(a_k), Some(b_k)) => a_k.cmp(b_k),
+        (Some(_), None) => Ordering::Greater,
+        (None, Some(_)) => Ordering::Less,
+        (None, None) => Ordering::Equal,
+    });
     list
 }
 
@@ -39,7 +46,7 @@ pub fn decode_tags_to_map(tags: &str) -> HashMap<String, String> {
     let mut list = HashMap::new();
 
     for (k, v) in form_urlencoded::parse(tags.as_bytes()) {
-        if k.is_empty() || v.is_empty() {
+        if k.is_empty() {
             continue;
         }