Special pages don't exactly have article ids we can stuff in imagelinks.il_from

I heard ideas for the long term to have CodeReview comments go into a LiquidThread instead (iirc the new LQT will have the ability for threads that don't have a wiki page as host), which should make this possible (assuming they are still in the thread namespace).

But then again for the other long term, we won't use CodeReview at all after the switch to Git, right ?

(In reply to comment #2)

I heard ideas for the long term to have CodeReview comments go into a
LiquidThread instead (iirc the new LQT will have the ability for threads that
don't have a wiki page as host), which should make this possible (assuming they
are still in the thread namespace).

But then again for the other long term, we won't use CodeReview at all after
the switch to Git, right ?

Indeed. I've backed off on doing CR development, features at least...

I'd consider the relationship between CodeReview and an image repo (foreign or not) to be roughly the equivalent of mywikisite.org and a foreign file repo like Wikimedia Commons. We don't (and won't) track file usage on foreign wikis. Similarly, I don't think it's necessary to track file usage in CodeReview comments. I'd recommend "wontfix" or "invalid" here.