How to add a new user to default_data.json?

I committed a change to default_data.json to add my information, but the test cases failed on zuul, which said: "List of users should be ordered by launchpad id or ldap id or github id", however when I run the test script "test_config_files.py" on my local pc, every test cases passed.

https://review.openstack.org/#/c/638063/

any idea ?