posting 2 times in a short time like vbulletin.org

[haytham]

Hi,
I have noticed that if I replied to a post then tried to reply again, the 2 posts would go under 1 post. Where can I get this mod?

[Dismounted]

I believe that vBulletin.org is using a modified version of Xenon's hack (https://vborg.vbsupport.ru/showthread.php?t=96602).