When I create a new issue in JSM and choose a request type, I've only the fields available that are shown in the "Request form".

Use case: I have a simple request form for my customers on the portal and want to allow my agents to have more fields available in the create screen while creating an issue in JSM, with the same request type. a suitable create screen is assigned, but is overridden by the request type

Actual workaround:

The agents create a new issue without choosing a request type. That way all fields from the create screen are available. Before the user finally clicks create he chooses the request type -> the filled fields disappear from the create screen -> he clicks "create" -> the prefilled fields are filled in the view screen.