$ git clone -n https://src.fedoraproject.org/rpms/fetch-crl.git /var/lib/mock/f39-build-1520798-35832/root/chroot_tmpdir/scmroot/fetch-crl
Cloning into '/var/lib/mock/f39-build-1520798-35832/root/chroot_tmpdir/scmroot/fetch-crl'...
$ git fetch origin 6b4e0559a735aea8055f50fb5435d049c08c982b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fetch-crl
 * [new ref]         6b4e0559a735aea8055f50fb5435d049c08c982b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b4e055 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild