$ git clone -n https://src.fedoraproject.org/rpms/perl-Config-Tiny.git /var/lib/mock/f45-build-22556-593/root/chroot_tmpdir/scmroot/perl-Config-Tiny
Cloning into '/var/lib/mock/f45-build-22556-593/root/chroot_tmpdir/scmroot/perl-Config-Tiny'...
$ git fetch origin cc1f6381f2c352f467d22dab6e71fe5c34f1ecd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Config-Tiny
 * [new ref]         cc1f6381f2c352f467d22dab6e71fe5c34f1ecd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc1f638 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild