$ git clone -n https://src.fedoraproject.org/rpms/perl-Set-Scalar.git /var/lib/mock/f42-build-3161195-40896/root/chroot_tmpdir/scmroot/perl-Set-Scalar
Cloning into '/var/lib/mock/f42-build-3161195-40896/root/chroot_tmpdir/scmroot/perl-Set-Scalar'...
$ git fetch origin 27ac77f50fb9c680b459e22b2e3f4c76a723bab0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Set-Scalar
 * [new ref]         27ac77f50fb9c680b459e22b2e3f4c76a723bab0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27ac77f Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild