$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Some.git /var/lib/mock/f39-build-1435179-31974/root/chroot_tmpdir/scmroot/perl-Test-Some
Cloning into '/var/lib/mock/f39-build-1435179-31974/root/chroot_tmpdir/scmroot/perl-Test-Some'...
$ git fetch origin 8c2b783e7b3272f389be3e0e080a21b1fcb2d916:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Some
 * [new ref]         8c2b783e7b3272f389be3e0e080a21b1fcb2d916 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c2b783 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild