en/merge-tree (Was: Re: What's cooking in git.git (Jun 2022, #07; Wed, 22))

> [Stalled]
>
> * en/merge-tree (2022-02-23) 13 commits
>  - git-merge-tree.txt: add a section on potentional usage mistakes
>  - merge-tree: add a --allow-unrelated-histories flag
>  - merge-tree: allow `ls-files -u` style info to be NUL terminated
>  - merge-tree: provide easy access to `ls-files -u` style info
>  - merge-tree: provide a list of which files have conflicts
>  - merge-ort: provide a merge_get_conflicted_files() helper function
>  - merge-tree: support including merge messages in output
>  - merge-ort: split out a separate display_update_messages() function
>  - merge-tree: implement real merges
>  - merge-tree: add option parsing and initial shell for real merge function
>  - merge-tree: move logic for existing merge into new function
>  - merge-tree: rename merge_trees() to trivial_merge_trees()
>  - Merge branch 'en/remerge-diff' into en/merge-trees
>
>  A new command is introduced that takes two commits and computes a
>  tree that would be contained in the resulting merge commit, if the
>  histories leading to these two commits were to be merged, and is
>  added as a new mode of "git merge-tree" subcommand.
>
>  On hold.
>  cf. <CABPp-BGZ7OAYRR5YKRsxJSo-C=ho+qcNAkqwkim8CkhCfCeHsA@mail.gmail.com>
>  source: <pull.1122.v6.git.1645602413.gitgitgadget@gmail.com>