$ git clone -n https://src.fedoraproject.org/rpms/nemiver.git /var/lib/mock/f39-build-1491689-34522/root/chroot_tmpdir/scmroot/nemiver
Cloning into '/var/lib/mock/f39-build-1491689-34522/root/chroot_tmpdir/scmroot/nemiver'...
$ git fetch origin 7e6ce929022c735be0c4013b26e5a41470eee0b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nemiver
 * [new ref]         7e6ce929022c735be0c4013b26e5a41470eee0b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e6ce92 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild