Thank you for filling out a Git bug report! Please answer the following questions to help us understand your issue. What did you do before the bug happened? (Steps to reproduce your issue) (`git merge --no-overwrite-ignore` overwrites ignored files when merge with conflict.) cd '/'; cd '/'; rm --force --recursive -- './test_git'; mkdir "$_"; cd "$_"; mkdir --parents -- './repo'; git init './repo' echo '1' >'./repo/file_conflict'; git -C './repo' add './file_conflict'; git -C './repo' commit -m "$((++number))" git -C './repo' branch branch2 git -C './repo' checkout -b branch1; echo 'file' >'./repo/.gitignore'; git -C './repo' add './.gitignore'; echo '2' >'./repo/file_conflict'; git -C './repo' add './file_conflict'; git -C './repo' commit -m "$((++number))" git -C './repo' checkout branch2; echo '1' >'./repo/file'; git -C './repo' add './file'; echo '3' >'./repo/file_conflict'; git -C './repo' add './file_conflict'; git -C './repo' commit -m "$((++number))" git -C './repo' checkout branch1 echo '2' >'./repo/file'; git -C './repo' log --graph --all --patch git -C './repo' status --verbose --verbose cat './repo/file' git -C './repo' merge -m "$((++number))" --no-overwrite-ignore branch2 git -C './repo' log --graph --all --patch git -C './repo' status --verbose --verbose cat './repo/file' (`git merge --no-overwrite-ignore` overwrites ignored files when merge without conflict.) cd '/'; cd '/'; rm --force --recursive -- './test_git'; mkdir "$_"; cd "$_"; mkdir --parents -- './repo'; git init './repo' git -C './repo' commit -m "$((++number))" --allow-empty git -C './repo' branch branch2 git -C './repo' checkout -b branch1; echo 'file' >'./repo/.gitignore'; git -C './repo' add './.gitignore'; git -C './repo' commit -m "$((++number))" git -C './repo' checkout branch2; echo '1' >'./repo/file'; git -C './repo' add './file'; git -C './repo' commit -m "$((++number))" git -C './repo' checkout branch1 echo '2' >'./repo/file'; git -C './repo' log --graph --all --patch git -C './repo' status --verbose --verbose cat './repo/file' git -C './repo' merge -m "$((++number))" --no-overwrite-ignore branch2 git -C './repo' log --graph --all --patch git -C './repo' status --verbose --verbose cat './repo/file' What did you expect to happen? (Expected behavior) `git merge --no-overwrite-ignore` refuses to overwrite ignored files when merge with conflict. `git merge --no-overwrite-ignore` refuses to overwrite ignored files when merge without conflict. What happened instead? (Actual behavior) `git merge --no-overwrite-ignore` overwrites ignored files when merge with conflict. `git merge --no-overwrite-ignore` overwrites ignored files when merge without conflict. What's different between what you expected and what actually happened? Anything else you want to add: (`git merge --no-overwrite-ignore` refuses to overwrite ignored files when fast-forward.) cd '/'; cd '/'; rm --force --recursive -- './test_git'; mkdir "$_"; cd "$_"; mkdir --parents -- './repo'; git init './repo' branch_default_path="$(git -C './repo' symbolic-ref HEAD)" branch_default_name="${branch_default_path#'refs/heads/'}" echo 'file' >'./repo/.gitignore'; git -C './repo' add './.gitignore'; git -C './repo' commit -m "$((++number))" git -C './repo' branch branch1 rm './repo/.gitignore'; git -C './repo' add './.gitignore'; echo '1' >'./repo/file'; git -C './repo' add './file'; git -C './repo' commit -m "$((++number))" git -C './repo' checkout branch1 echo '2' >'./repo/file'; git -C './repo' log --graph --all --patch git -C './repo' status --verbose --verbose cat './repo/file' git -C './repo' merge -m "$((++number))" --no-overwrite-ignore "$branch_default_name" git -C './repo' log --graph --all --patch git -C './repo' status --verbose --verbose cat './repo/file' Please review the rest of the bug report below. You can delete any lines you don't wish to share. [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