I’d like to understand config templates. It seems that the default values are ignored. Given:

template:
  config:
    aws:region:
      description: The AWS Region
      default: us-east-1

I get the following error:

$ pulumi config get aws:region
error: configuration key 'aws:region' not found for stack '<org>/dev'

Why should I need to define a config var for every stack if it has a default value?