fix: 细节修改

package.json

 {
   "name": "panda-xform",
-  "version": "4.6.7",
-  "description": "4.6.7 同步的信息配置支持清除",
+  "version": "4.6.8",
+  "description": "4.6.8 细节修改",
   "keywords": [
     "panda-xform"
   ],

src/core/widgets/file/FileUpload/index.js

@@ -171,8 +171,10 @@ const FileUpload = (props) => {
 
   useEffect(() => {
     if (presetValue && !presetValue.includes('拍照相册')) {
-      onChange(presetValue || '')
+      onChange(presetValue)
       setShowList(valueToList(presetValue))
+    } else {
+      onChange('')
     }
   }, [presetValue])