fix(bump): Preserve existing changelog header when `changelog_merge_prerelease` is used with `cz bump --changelog`#1850

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edgarrmondragon wants to merge 7 commits intocommitizen-tools:masterfrom

edgarrmondragon:fix/bump-changelog-merge-pre-removes-header

Commits on Feb 5, 2026

test: Add a failing test
edgarrmondragon
committed
fix(bump): Preserve existing changelog header when `changelog_merge_prerelease` is used with `cz bump --changelog`
edgarrmondragon
committed
fix(bump): Preserve existing changelog header when `changelog_merge_prerelease` is used with `cz bump --changelog`, and no prereleases exist
edgarrmondragon
committed