$ git clone -n https://src.fedoraproject.org/rpms/perl-Class-C3-Componentised.git /var/lib/mock/f45-build-22314-590/root/chroot_tmpdir/scmroot/perl-Class-C3-Componentised
Cloning into '/var/lib/mock/f45-build-22314-590/root/chroot_tmpdir/scmroot/perl-Class-C3-Componentised'...
$ git fetch origin 6ed22c3b35c748b41343ddb27b5727d91b98e929:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Class-C3-Componentised
 * [new ref]         6ed22c3b35c748b41343ddb27b5727d91b98e929 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ed22c3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild