Retrieve the index value of a custom field in changelog

[Jar Lady]

I have a custom field name People (configured as multiple) and would like to access its past/now values. I know getting the value is through this syntax: {{#changelog.People}}{{//changelog.People}}. What about the index? In normal circumstances I can access the custom field value issue.People.get(0) but there's nothing said about accessing the index value of changelog.People. I tried changelog.People.get(0) but it just returns me the whole list of People, not just the first element. What is the correct syntax?