Option to show first commit in merge request by default
### Problem to solve In a commit by commit review process the emphasis is on individual commits, not aggregate changes by multiple commits, but the default comparison mode is immediately presents people with an aggregate diff. The default experience to show a commit that needs to be reviewed. ### Further details ### Proposal Add an option for **Default comparison mode** with options: - Merge Request - Commits This way organizations that want commit based reviews can make commit based comparisons the default comparison. ### Links / references
issue