`git diff --break-rewrites` does not work (otherwise it should break rewrite into delete and create, for `--find-renames` to work)

[Han Jiang <jhcarl0814@gmail.com>]

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Please answer the following questions to help us understand your issue.

What did you do before the bug happened? (Steps to reproduce your issue)

cd '/'; cd '/'; rm --force --recursive -- './test_git2'; mkdir "$_"; cd "$_";
mkdir --parents -- './repo';
git init './repo'
echo -e 'a\nb\nc\nd\ne\nf\ng\nh\ni\nj' >'./repo/file1'
echo -e '0\n1\n2\n3\n4\n5\n6\n7\n8\n9' >'./repo/file2'
git -C './repo' add './file1' './file2'
mv './repo/file2' './repo/file3'
mv './repo/file1' './repo/file2'
git -C './repo' add --intent-to-add './file3'
git -C './repo' diff --break-rewrites='50%/50%' --find-renames='50%'

What did you expect to happen? (Expected behavior)

`git diff` outputs: file1 rename to file2, file2 rename to file3

What happened instead? (Actual behavior)

`git diff` outputs: file1 remove all content, file2 complete rewrite,
file3 add all content

What's different between what you expected and what actually happened?

Anything else you want to add:

Please review the rest of the bug report below.
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[System Info]
git version:
git version 2.46.0.windows.1
cpu: x86_64
built from commit: 2e6a859ffc0471f60f79c1256f766042b0d5d17d
sizeof-long: 4
sizeof-size_t: 8
shell-path: D:/git-sdk-64-build-installers/usr/bin/sh
feature: fsmonitor--daemon
libcurl: 8.9.0
OpenSSL: OpenSSL 3.2.2 4 Jun 2024
zlib: 1.3.1
uname: Windows 10.0 22631
compiler info: gnuc: 14.1
libc info: no libc information available
$SHELL (typically, interactive shell): C:\Program Files\Git\usr\bin\bash.exe


[Enabled Hooks]
not run from a git repository - no hooks to show