$ git clone -n https://src.fedoraproject.org/rpms/R-gapminder.git /var/lib/mock/f38-build-side-42-init-devel-824317-28360/root/chroot_tmpdir/scmroot/R-gapminder
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-824317-28360/root/chroot_tmpdir/scmroot/R-gapminder'...
$ git fetch origin 29a02de90040905db5a23a5ea28ca2cae40fbc96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gapminder
 * [new ref]         29a02de90040905db5a23a5ea28ca2cae40fbc96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29a02de Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild