What is rerere?

Rerere stands for "Reuse recorded resolution". It is a feature of Git that allows you to automatically apply resolutions for conflicts that have already been resolved in the past. This feature is especially helpful when you are dealing with merge conflicts in large projects that involve multiple contributors. With rerere, Git records the conflict resolution strategies that were applied in the past for a specific set of conflicting files, and then automatically applies those strategies the next time the conflict occurs. By doing so, it saves time and effort, and ensures consistency across different merge operations. However, rerere is not enabled by default and needs to be activated manually for your Git repository.