Vehicle Mercedes does not work with type: template

[ReneNulschDE]

Describe the bug

When you configure a vehicle with type: template, template: mercedes, the vehicle does not work. The config value region is not transfered from the template to the mercedes component.

Steps to reproduce

1. Create the following config entry in the evcc.yaml

vehicles:
  - name: name-car-1
    type: template
    template: mercedes
    title: title-car-1
    user: test123
    region: EMEA
    accesstoken: at
    refreshtoken: rt
    vin: W1

2. Set a break point in the mercedes.go line 39
3. Start the debugger and check that cc.Region is empty
4. Change the config to:

  - name: name-car-1
    type: mercedes
    title: title-car-1
    user: test@intranet
    region: EMEA
    tokens:
     access: at
     refresh: rt
    vin: W1

5. Start the debugger and check that cc.Region has the value EMEA

Looks like it gets lost in templates.template.RenderTemplate (tmpl.execute, line 347)

Configuration details

See steps to repro

Log details

n/a

What type of operating system are you running?

Linux

Version

current master branch

[VolkerK62]

it is missing within the render part of the template

[andig]

Region fehlt in https://github.com/evcc-io/evcc/blob/master/templates/definition/vehicle/mercedes.yaml#L39. Hab ich ggf bei der Vereinfachung übersehen.