I tried editing the title of nginx rewite for new links structure, but was precluded by doing so.
The following was the error message:
× Body cannot contain "http://www.domain.com".
Please use example.com (or .org or .net) for fake URLs. More info
This seems like a wrong kind of UX -- if you didn't add any invalid domains, and didn't even touch question body, why should you be precluded from fixing the title?
(In the above question, the change may be trivial, but I don't want to assume the responsibility for editing a body of a really poorly-written question, as that's a sure rabbit hole.)