Description

Commitizen fails if version_provider is set to scm and no files are changed (no changelog, no version number in files) a version bump

Steps to reproduce

1. Create en empty repository with git init test and change into it cd test
2. Add a configuration cz.toml

[tool.commitizen]
version_provider = "scm"

3. Commit it with git add cz.toml and cz commit
4. Run cz bump

bump: version 0.0.0 → 0.0.1
tag to create: 0.0.1
increment detected: PATCH
[main 16e057b] bump: version 0.0.0 → 0.0.1
 1 file changed, 1 insertion(+), 1 deletion(-)
Done!

5. Add another file / make another changer with touch foobar, git add foobar and cz commit
6. Run cz bump

bump: version 0.0.1 → 0.0.2
tag to create: 0.0.2
increment detected: PATCH
2nd git.commit error: "On branch main
nothing to commit, working tree clean
"

If I run cz bump --changelog the second time, there is no error.

Current behavior

cz bump fails if no changes (updated changelog, version number in files) are made during a version bump.

Desired behavior

cz bump should not fail if no changes (updated changelog, version number in files) are made during a version bump.

Screenshots

No response

Environment

Commitizen Version: 4.8.2
Python Version: 3.13.4 (main, Jun 3 2025, 15:34:24) [Clang 17.0.0 (clang-1700013.3)]
Operating System: Darwin