Called when the version changes on "topic" branches. These are release/hotfix/feature branches.
This method is called AFTER the poms have been committed. Any changes made to the project within this method will need to also be committed within this method. A helper class is provided to make this easier. {@link com.atlassian.maven.jgitflow.api.util.JGitFlowCommitHelper}
@throws com.atlassian.maven.jgitflow.api.exception.MavenJGitFlowExtensionException