Just now discovered that inquestion is highly sensitive to referrer and just doesn't work in many situations.
Given https://stackoverflow.com/search?q=inquestion:1711+mythical+man+month:
An offsite referrer yields no results if it resembles
/questions/{ID}
. (The wrong ID is used?) Reproduce: use the link from this MSO question.No referrer yields a server error. Reproduce: copy-paste the URL into a new window.
Otherwise yields results from many other questions; appears that inquestion is simply ignored. Reproduce: use the link from the revision history page.
While inquestion:this does work from the question page, it fails when refining the search. Reproduce: change the sort order to newest or votes. The query terms should instead have "this" replaced with the question ID when first submitted, which has the added bonus of being able to share working URLs.