$ git clone -n https://src.fedoraproject.org/rpms/lmdbxx.git /var/lib/mock/f40-build-2009186-45460/root/chroot_tmpdir/scmroot/lmdbxx
Cloning into '/var/lib/mock/f40-build-2009186-45460/root/chroot_tmpdir/scmroot/lmdbxx'...
$ git fetch origin f5c509bec3accbb9f14b592834704810ebfe4075:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lmdbxx
 * [new ref]         f5c509bec3accbb9f14b592834704810ebfe4075 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5c509b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild