Problem using --starting-version with --tag-pattern

[cmastrandrea]

I'm trying to create a changelog for just one specific release version (e.g. v12.2.0).

If I use --starting-version v12.2.0, it creates a changelog of v12.2.0, v12.2.1, etc (as expected). So I added --tag-pattern as well to restrict the tags to just the specific version:
$ auto-changelog --starting-version v12.2.0 --tag-pattern v12.2.0 --commit-limit false

However that creates a changelog that includes every commit in the history, not just those for v12.2.0. Is this a bug, or am I using --tag-pattern in an unexpected way?

Any other way to get just a changelog of one specific release version?

[cmastrandrea]

Perhaps an --ending-version option is what is needed here, if this isn't the intended use of --tag-pattern or there's some technical limitation with --tag-pattern supporting a full tag version

[cookpete]

The problem here is that --tag-pattern is applied before the tags are "enriched" with the diff, which uses the previous tag to store a diff string used later. --starting-version is applied afterwards, so previous versions can be removed without losing the diff data of the remaining tags. Great job with the PR – I'll merge it soon.