element的分页bug

 <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page.sync="pagination.current" :page-sizes="[10, 20, 50, 100]" :page-size="pagination.size"
      layout="total, sizes, prev, pager, next, jumper" :total="pagination.total">
    </el-pagination>

其中的current-page必须设置.sync，否则会出现跳转多次加载以及页码不高亮问题