$ git clone -n https://src.fedoraproject.org/rpms/R-curl.git /var/lib/mock/f40-build-789552-135900/root/chroot_tmpdir/scmroot/R-curl
Cloning into '/var/lib/mock/f40-build-789552-135900/root/chroot_tmpdir/scmroot/R-curl'...
$ git fetch origin b402d134c33dc392c121f0e8e74c4de06874d9b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-curl
 * [new ref]         b402d134c33dc392c121f0e8e74c4de06874d9b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b402d13 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild