Author: FT2.wiki
Description:
(Forked from T23279#258163 per @Brion)
Per T23279, code will be patched so that deleted revisions can be referenced by their rev_id (to ensure that links using rev_id will work regardless of subsequent delete/undelete activity).
Once this is done, can special pages such as [[Special:Undelete]] and [[Special:DeletedContributions]] be modified so that the links they show to deleted revisions and deleted revision diffs use rev_id rather than page/timestamp. This would ensure that any links posted on-wiki or noted by users for future would be guaranteed to always work (or at least be easy to trace) regardless of future deletion/undeletion, unlike page/timestamp based links which can fail.