I don't know where it is located and what the code looks like that updates the keyed_name according to the Keyed Name Order. At least I did not find anything similar among the SQL stored procedures. I think that this code has nowhere to take information but only from the AML request passed to it.
It can receive AML like this from the browser for example
[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:fcfe0260-f9cc-4aa1-bfb0-e90bd00b9f48:type=xml&text=%3CItem%20type%3D%27Part%27%20action%3D%27update%27%20id%3D%27AAA...AAA%27%3E%0D%0A%20%20%3CRelationships%3E%0D%0A%20%20%20%20%3CItem%20action%3D%27add%27%20type%3D%27MyPartDoc%27%3E%0D%0A%20%20%20%20%20%20%20%3Crelated_id%20keyed_name%3D%22DOC-100001%22%20type%3D%22MyDocument%22%3E%0D%0A%20%20%20%20%20%20%20%20%20%20%3CItem%20type%3D%22MyDocument%22%20typeId%3D%22BBB...BBB%22%20id%3D%22CCC...CCC%22%3E%0D%0A%20%20%20%20%20%20%20%20%20%20%20%20%3Cconfig_id%20keyed_name%3D%22DOC-100001%22%20type%3D%22MyDocument%22%3ECCC...CCC%3C%2Fconfig_id%3E%0D%0A%20%20%20%20%20%20%20%20%20%20%20%20...%0D%0A%20%20%20%20%20%20%20%20%20%20%3C%2FItem%3E%0D%0A%20%20%20%20%20%20%3C%2Frelated_id%3E%0D%0A%20%20%20%20%3C%2FItem%3E%0D%0A%20%20%3C%2FRelationships%3E%0D%0A%3C%2FItem%3E]
or something like this generated by code
[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:b0a9a12b-d132-4415-bfa2-a43b35a1e053:type=xml&text=%3CItem%20type%3D%27Part%27%20action%3D%27update%27%20id%3D%27AAA...AAA%27%3E%0D%0A%20%20%3CRelationships%3E%0D%0A%20%20%20%20%3CItem%20action%3D%27add%27%20type%3D%27MyPartDoc%27%3E%0D%0A%20%20%20%20%20%20%20%3Crelated_id%3ECCC...CCC%3C%2Frelated_id%3E%0D%0A%20%20%20%20%3C%2FItem%3E%0D%0A%20%20%3C%2FRelationships%3E%0D%0A%3C%2FItem%3E]
Both variants are valid and will work. Maybe in the first case this code can fill MyPartDoc keyed_name with the MyDocument keyed_name and in the second it can't.
No, I was wrong. I tested and in both cases the keyed_name is set to id.
