$ git clone -n https://src.fedoraproject.org/rpms/perl-Mason-Tidy.git /var/lib/mock/f45-build-24664-605/root/chroot_tmpdir/scmroot/perl-Mason-Tidy
Cloning into '/var/lib/mock/f45-build-24664-605/root/chroot_tmpdir/scmroot/perl-Mason-Tidy'...
$ git fetch origin ae7be9d9aead6b3c96003456de394883920380a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mason-Tidy
 * [new ref]         ae7be9d9aead6b3c96003456de394883920380a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae7be9d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild