Merge pull request 'master' (#510) from master into prod

Reviewed-on: http://git.feashow.cn/clay/mosr-web/pulls/510

src/components/SearchFilesByTag.vue

@@ -126,7 +126,7 @@ const handleSearch = () => {
 }
 const handleReset=()=>{
   attachment.fileName=''
-  attachment.tag=''
+  attachment.tag=null
   emit('search', {})
 }
 const handleUpload = () => {