$ git clone -n https://src.fedoraproject.org/rpms/R-ellipsis.git /var/lib/mock/f38-build-side-42-init-devel-565641-25895/root/chroot_tmpdir/scmroot/R-ellipsis
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-565641-25895/root/chroot_tmpdir/scmroot/R-ellipsis'...
$ git fetch origin ef4c36553a7e8c9b574dcdb2c96484ea0332c35e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-ellipsis
 * [new ref]         ef4c36553a7e8c9b574dcdb2c96484ea0332c35e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef4c365 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild