Changelog not generating when using github squash & merge

[Dave Barnow]

When merging pull requests using githubs "squash & merge" feature, it seems like the cz bump processes correctly, but changelog generation does not.

Doing a cz check against the range fails the commit validation. The commit message of the squashed PR looks something like this:

PR Title here (#123)

refactor: aaaa

fix: bbb

and when doing a cz changelog {version_number}, I get an empty changelog, but expecting

## version (date)

### Fix
- bbb

### Refactor
- aaaa

The only solution I have is to disable "squash and merge", as well as "create a merge commit", and only enabling "rebase and merge"

[Dave Barnow]

I made this in the wrong repo. Opened it here commitizen-tools/commitizen#651