$ git clone -n https://src.fedoraproject.org/rpms/perl-Spiffy.git /var/lib/mock/f39-build-1439338-32245/root/chroot_tmpdir/scmroot/perl-Spiffy
Cloning into '/var/lib/mock/f39-build-1439338-32245/root/chroot_tmpdir/scmroot/perl-Spiffy'...
$ git fetch origin c1ed6522db8e2fa1bcdb363952241920756d1783:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Spiffy
 * [new ref]         c1ed6522db8e2fa1bcdb363952241920756d1783 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1ed652 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild