Layout properties on _Layout.cshtml are all null

[Chris1415]

What happened?

Description

• The Layout properties used e.g. for <Title> are all null
• Because of that it is impossible to set page title, which should be the Context Item Display Name.

Reproduction Steps

1. Open standard skatepark and examine the Layout properties.

Actual Behavior

• All the properties are null
• For testing purpose I outputted the layout model to page
  

Expected Behavior

• The properties have the proper values from CM (Preview) or Edge (Live)
  

Relevant log output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[Chris1415]

I had a look at the SDK for the route field mapping things. I can see in the log following (While saying this, it might make sense to put the issue into SDK rather than starter kit as it seems to be an issue there)

When moving into the SDK it drills down to this level ultimately. It tries to find the field / value based on a "fixed" list of Fields. But those are the standard fields of the context item, not the route fields.

I can see that "one" step earlier the route is still there. But as soon as it enters this custom tryreadvalue custom function the context of the currentRoute is lost and it used fixed fields