$ git clone -n https://src.fedoraproject.org/rpms/groonga.git /var/lib/mock/f38-build-side-42-init-devel-706311-27163/root/chroot_tmpdir/scmroot/groonga
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-706311-27163/root/chroot_tmpdir/scmroot/groonga'...
$ git fetch origin 0a832aca0fb8e0665a651fda5e358c5dd9dfb1b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/groonga
 * [new ref]         0a832aca0fb8e0665a651fda5e358c5dd9dfb1b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a832ac Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild