Steps to reproduce
Bugbug thinks this bug is a regression, but please revert this change in case of error.
I don't think this is a regression.
I went back until 2017-05-12 when the "Form autofill" feature was implemented and I could reproduce the issue.
Not a regression, we shipped with this bug since 2017 so it is wontfix for 74.
Please put the URL in the URL field in the future for site issues.