Spree Admin SDK
Restore an email template revision
Copies the revision into the draft, to be published like any change.
Send the draft’s lock_version when one is open, as when saving it.
Required scope: write_email_templates (for API-key authentication).
POST
Spree Admin SDK
Authorizations
Secret API key for admin access
JWT token for admin user authentication
Headers
Bearer token for admin authentication
Body
application/json
Response
201 - application/json
revision copied into the draft
Available options:
email, layout, partial 
