style：设备台账-资料多选上传bug修复

src/components/UploadFile/src/UploadFile.vue

@@ -313,7 +313,7 @@ watch(
 const emitUpdateModelValue = () => {
   const infos = buildInfosFromFileList()
   let result: string | string[]
-  if (props.limit === 1 || isString(props.modelValue)) {
+  if (props.limit === 1) {
     if (!infos.length) {
       result = ''
     } else {