fun package执行之后生成的template.packaged.yml，其中的自定义域名解析有误

ServiceName和FunctionName相同时，解析如下图所示


Start by running fun package for a case where ServiceName and FunctionName are identical, then inspect the generated template.packaged.yml. Compare the custom-domain resolution with the behavior shown in the issue image and determine the expected mapping. Done means the generated template resolves the custom domain correctly for matching service and function names.

Written by the indexing model from the issue text.