$ git clone -n https://src.fedoraproject.org/rpms/R-highr.git /var/lib/mock/f38-build-side-42-init-devel-888011-28505/root/chroot_tmpdir/scmroot/R-highr
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-888011-28505/root/chroot_tmpdir/scmroot/R-highr'...
$ git fetch origin d801ab3e6322da9fd65108b925ae85b631ec040f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-highr
 * [new ref]         d801ab3e6322da9fd65108b925ae85b631ec040f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d801ab3 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild