Feature Request: Keep query parameters on submit

[AndersBrohus]

Describe your idea

An option to allow for query parameters to be kept when submitting the form

Context

We have a project where we have some content where we are using an guid in a query parameter to grab the correct data directly from the database.

On this page we have a "Contact us" button but when the form is submitted, we are getting an 404 page since the query parameter is removed so we do not know which content to grab.

We would like to stay on the current page then being redirected to the frontpage or an 404 page.