$ git clone -n https://src.fedoraproject.org/rpms/R-jqr.git /var/lib/mock/f40-build-2162444-50941/root/chroot_tmpdir/scmroot/R-jqr
Cloning into '/var/lib/mock/f40-build-2162444-50941/root/chroot_tmpdir/scmroot/R-jqr'...
$ git fetch origin b9c93f333dffd0b1a88abd45c87586de159a82b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-jqr
 * [new ref]         b9c93f333dffd0b1a88abd45c87586de159a82b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9c93f3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild