Latest Fedora delivers 2.128 version. Upstream released 2.129. When you have free time, please upgrade it.
perl-Config-Model-2.129-1.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-86bc59da2d
perl-Config-Model-2.129-1.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.