What ensures that reverts can be easily done in a Git merge?

The ability to easily revert changes in a Git merge is fundamentally connected to the use of version control systems, particularly Git's branching and merging features. While online conflict resolution plays a role in addressing conflicts that may arise during merges, it is the underlying mechanisms of version control that facilitate the reversion of changes.

When a merge is performed in Git and then later needs to be reverted, Git maintains a complete history of changes, allowing users to undo merges by creating a new commit that negates the changes introduced by the previous merge. This process is streamlined because each commit, including merges, is linked in a timeline of changes, making it straightforward to identify and revert specific changes or branches.

In essence, version control systems like Git inherently allow for such operations, enabling developers to track and reverse changes with ease. This capability forms the backbone of ensuring that reverts can be reliably executed after merges, providing a safety net for developers working in collaborative environments.