Apply rewrite rules to past feed entries

[tarasglek]

I use url rewriting a lot with my https://markdown.download/ service to simplify fetched content for improving "fetch original" content option.

I apply it via rewrite("^(.+)$"|"https://markdown.download/$1")

However usually my process is that I add a feed, then I notice it only returns partial results, then I go ask for fetch original content, then I see that I need to apply my markdown simplifier. Then I add it and now I have to go manually click download on already-processed entries.

Is there a better workflow, or can this be added via [x] apply rules to unread entries, [x] apply rules to all entries?