There is a possibility that a user can add commit to accepted diff and then can push into main repository. I've a herald rule which prevents unaccepted revisions to get pushed into repository. But by tailgating commits into accepted diff, someone can push those commits into main repository directly.
Is there any way by which I can write a global rule to automatically trigger "request review" for updated revisions?
Please read comments on the answer of @avivey, that discussion led to reopening of this question.