Push up to a specific commit. This function pushes the current branch up to a specific commit hash. My main use case for this is when making changes to a branch which already has a Pull Request in Azure DevOps. The changes in each push can be reviewed as separate updates to the PR, so I can make a series of commits then push them as multiple logical updates for easier review.

I based this alias on https://coderwall.com/p/hexinq/git-push-up-to-a-certain-commit