修复后缀重复问题

examples/versions.json

-{"1.4.13":"1.4","2.0.11":"2.0","2.1.0":"2.1","2.2.2":"2.2","2.3.9":"2.3","2.4.11":"2.4","2.5.4":"2.5","2.6.3":"2.6","2.7.2":"2.7","2.8.2":"2.8","2.9.2":"2.9","2.10.1":"2.10","2.11.1":"2.11","2.12.0":"2.12","2.13.2":"2.13","2.14.1":"2.14","2.15.7678":"2.15"}
+{"1.4.13":"1.4","2.0.11":"2.0","2.1.0":"2.1","2.2.2":"2.2","2.3.9":"2.3","2.4.11":"2.4","2.5.4":"2.5","2.6.3":"2.6","2.7.2":"2.7","2.8.2":"2.8","2.9.2":"2.9","2.10.1":"2.10","2.11.1":"2.11","2.12.0":"2.12","2.13.2":"2.13","2.14.1":"2.14","2.15.7679":"2.15"}
\ No newline at end of file

package.json

 {
   "name": "element-ui",
-  "version": "2.15.7678",
+  "version": "2.15.7679",
   "description": "A Component Library for Vue.js.",
   "main": "lib/element-ui.common.js",
   "files": [

packages/upload/src/upload.vue

@@ -86,7 +86,10 @@ export default {
 
       if (!this.beforeUpload) {
         let file = this.fileList.find(o => o.uid === rawFile.uid);
-        let filename = file.name + rawFile.name.substring(rawFile.name.lastIndexOf('.'));
+        let filename = file.name;
+        if (filename.indexOf('.') === -1) {
+          filename = rawFile.name.substring(rawFile.name.lastIndexOf('.'));
+        }
         return this.post(rawFile, filename);
       }
 

src/index.js

@@ -210,7 +210,7 @@ if (typeof window !== 'undefined' && window.Vue) {
 }
 
 export default {
-  version: '2.15.7678',
+  version: '2.15.7679',
   locale: locale.use,
   i18n: locale.i18n,
   install,