$ git clone -n https://src.fedoraproject.org/rpms/perl-Log-TraceMessages.git /var/lib/mock/f45-build-24562-604/root/chroot_tmpdir/scmroot/perl-Log-TraceMessages
Cloning into '/var/lib/mock/f45-build-24562-604/root/chroot_tmpdir/scmroot/perl-Log-TraceMessages'...
$ git fetch origin 8c28798e74e12687d35813d7284e86f93fe2ff35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Log-TraceMessages
 * [new ref]         8c28798e74e12687d35813d7284e86f93fe2ff35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c28798 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild