请教各位技术大牛们

在开发者工具中生成的字段控件生成的代码-字段联动单选类型 ，前端调用城市名称不显示是什么原因  是bug嘛

<?php echo dr_fieldform('{"name":"您的籍贯","fieldname":"nindejiguan","ismain":"1","fieldtype":"Linkage","setting":{"option":{"linkage":"address","ck_child":"0","new":"0","value":"{nindejiguan}","css":""},"validate":{"required":"0","pattern":"","errortips":"","check":"","filter":"","formattr":"","tips":""}},"ismember":"1"}', $nindejiguan, 1, 1);?>

就是这个样子

应用版权：官方
应用名称：开发者工具

插件教程：https://www.xunruicms.com/doc/app-449.html