Reports show git commits in the wrong order

[ali1234]

Describe the bug When running wily on a git repo, and then generating a report, the report lists commits in the wrong order, and even contains commits that aren't part of the history.

To Reproduce Steps to reproduce the behavior:

1. git clone https://github.com/ali1234/32blit-tools
2. git checkout wily-test
3. wily build src/ttblit
4. wily report src/ttblit
5. Compare report to git log

Expected behavior Wily reports should list git commits in the order they appear in the git history, otherwise it looks like the complexity is constantly changing, when in fact the commit only introduced a few small changes.

Running Pycharm's terminal, Ubuntu 20.04, Python version 3.8.5, wily version 1.19.0