How to find a specific file's code in a website with a broken git commit?

For a challenge I found that I was able to download files off of /.git/ After using the tools from GitTools I soon realised that my goal was to get to read config.inc.php file. But the problem is, I got index.php extracted but not config.inc.php after extracting using GitTools. Am I missing something? Kindly please guide me in the right direction.