fix: always change treeProps.expandedKeys to avoid wrong loadling data

Author: bbb169

src/OptionList.tsx

@@ -211,9 +211,7 @@ const OptionList: React.ForwardRefRenderFunction<ReviseRefOptionListProps> = (_,
   if (treeLoadedKeys) {
     treeProps.loadedKeys = treeLoadedKeys;
   }
-  if (mergedExpandedKeys) {
-    treeProps.expandedKeys = mergedExpandedKeys;
-  }
+  treeProps.expandedKeys = mergedExpandedKeys || []
 
   return (
     <div onMouseDown={onListMouseDown}>