fix

Signed-off-by: junxiang Mu <1948535941@qq.com>

ecstore/src/heal/data_scanner.rs

@@ -1030,13 +1030,11 @@ impl FolderScanner {
 
 #[tracing::instrument(level = "info", skip(into, folder_scanner))]
 async fn scan(folder: &CachedFolder, into: &mut DataUsageEntry, folder_scanner: &mut FolderScanner) {
-    let mut dst = if into.compacted {
-        DataUsageEntry::default()
-    } else {
-        into.clone()
-    };
+    if !into.compacted {
+        *into = DataUsageEntry::default();
+    }
 
-    if Box::pin(folder_scanner.scan_folder(folder, &mut dst)).await.is_err() {
+    if Box::pin(folder_scanner.scan_folder(folder, into)).await.is_err() {
         return;
     }
     if !into.compacted {

ecstore/src/heal/data_usage_cache.rs

@@ -541,7 +541,7 @@ impl DataUsageCache {
         match self.find(path) {
             Some(root) => {
                 if root.children.is_empty() {
-                    return None;
+                    return Some(root);
                 }
                 let mut flat = self.flatten(&root);
                 if flat.replication_stats.is_some() && flat.replication_stats.as_ref().unwrap().empty() {