beforeDrop was triggered twice

[huchuanping]

When I use beforeDrop to block repeated connections, I find that the beforeDrop event will be triggered twice, resulting in two error prompts

[shanty1]

我也是遇到同样的问题，请问你解决了吗

[huchuanping]

这是来自QQ邮箱的假期自动回复邮件。   您好，我最近正在休假中，无法亲自回复您的邮件。我将在假期结束后，尽快给您回复。