Merge pull request 'master' (#574) from master into prod

Reviewed-on: http://git.feashow.cn/clay/mosr-web/pulls/574

src/views/workflow/process/common/UserPicker.vue

@@ -15,7 +15,7 @@
         <el-scrollbar style="height:90%;">
           <div class="tree">
             <el-tree :data="dataList" ref="tree" :props="defaultProps" empty-text="" node-key="value"
-                     :default-expanded-keys="expandedKeys" lazy accordion
+                     :default-expanded-keys="expandedKeys" default-expand-all accordion
                      @node-click="handleChange" @node-expand="handleChange">
               <template #default="{ node, data }">
                 <div class="tree-node">