$ git clone -n https://src.fedoraproject.org/rpms/dnf5.git /var/lib/mock/f42-build-3439163-45444/root/chroot_tmpdir/scmroot/dnf5
Cloning into '/var/lib/mock/f42-build-3439163-45444/root/chroot_tmpdir/scmroot/dnf5'...
$ git fetch origin 3e1a4a910f84270d1055d89930b213572e561ac6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnf5
 * [new ref]         3e1a4a910f84270d1055d89930b213572e561ac6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e1a4a9 Update to 5.2.12.0 upstream release