$ git clone -n https://src.fedoraproject.org/rpms/maven-plugin-build-helper.git /var/lib/mock/f38-build-side-42-init-devel-618906-26330/root/chroot_tmpdir/scmroot/maven-plugin-build-helper
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-618906-26330/root/chroot_tmpdir/scmroot/maven-plugin-build-helper'...
$ git fetch origin a8a376777c724cba48106603e00493151c8cf9d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/maven-plugin-build-helper
 * [new ref]         a8a376777c724cba48106603e00493151c8cf9d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8a3767 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild