service: providers are identified by full ids internally.

src/service/service.cr

@@ -57,7 +57,8 @@ class Service
 		end
 
 		specs.sections.select(&.name.==("consumes")).each do |section|
-			@providers[section.options[0]] = section.content["from"].as_s
+			env, provider = Service.parse_id section.content["from"].as_s
+			@providers[section.options[0]] = "#{env}/#{provider}"
 		end
 	end