I have a post at JudgeApps | Write some update quiz questions for Tarkir Dragonstorm! which has an embedded link to another judgeapps post. That second post is JudgeApps | Formatting protocol .
However, the embedded link does not work, because the site processes the embedded link as https://apps.magicjudges.org/topic/55157/ . That is, even if I edit the first post to change the embedded link to the proper URL, after I save it, the embedded link reverts back to the incorrect URL.