优化 index-tree.vue.vm 文件，undefined 修改为 null

fungleo

2020-07-26 ca657b048275fbac4fd13e3c26808ad20e8ea128

 ruoyi-ui/src/store/modules/user.js

@@ -58,7 +58,7 @@
          } else {

            commit('SET_ROLES', ['ROLE_DEFAULT'])

          }

          commit('SET_NAME', user.username)

          commit('SET_NAME', user.userName)

          commit('SET_AVATAR', avatar)

          resolve(res)

        }).catch(error => {