# Objective

- Make it easy to switch Git features between showing uncommitted
changes and all changes on the current branch.

## Solution

- Add `git::ToggleDiffBase`, which toggles the user setting between
`head` and `default_branch`.

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

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Release Notes:

- Git: Added an action to toggle the diff base between HEAD and the
default branch.