Generates duplicate entries under new versions.

[fireflysemantics]

I described the issue here.

https://stackoverflow.com/questions/78166310/generating-a-changelog-with-conventional-changelog-writer

Here's an example of the output I get after a few commits.

## 1.0.1 (2024-03-15)


### Bug Fixes

* add project scaffolding 38bc9ba


### Features

* add index.js with hello world logging 289395a



# 1.0.0 (2024-03-15)


### Bug Fixes

* add project scaffolding 38bc9ba

The commit entry 38bc9ba gets generated twice.