$ git clone -n https://src.fedoraproject.org/rpms/R-futile.options.git /var/lib/mock/f39-build-1496024-34546/root/chroot_tmpdir/scmroot/R-futile.options
Cloning into '/var/lib/mock/f39-build-1496024-34546/root/chroot_tmpdir/scmroot/R-futile.options'...
$ git fetch origin 826f0f5567249602a12b05ce4f1dbd4dc43d32cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-futile.options
 * [new ref]         826f0f5567249602a12b05ce4f1dbd4dc43d32cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 826f0f5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild