This page in a nutshell: This proposal offers a simple way to defer suspicious edits for review, when those are flagged by the edit filter, using the reviewing system of pending changes.
It is proposed that a new edit filter 'defer' action be created enabling intermittentpending changes protection or a technical equivalent in response to flagged edits on any article. Before the suspicious edit is saved, pending changes is enabled so that the suspect edit does not appear to readers and is instead checked by reviewers like usual pending edits, who can then revert it, overwrite it or accept it. However unlike typical pending changes, once any revision becomes accepted, either by a reviewer or automatically, pending changes is automatically removed from the page. An implementation minimizing the amount of technical changes required is sought after, so that the software request can be acted upon.