Unless I'm mistaken it seems message is the only variable available for templating commit entries. I was hoping to put together a changelog with a format something like:

[{{sha}}]({{url}}) {{message}} - {{author.name}}

I was wondering if there's a specific reason why commitMessages() just pulls out the commit message rather retaining the commit object (or a subset of it), which can then pass through the system eventually allowing generateCommitsBody() to template on more than just the commit message? If not, is this something that could be added?