$ git clone -n https://src.fedoraproject.org/rpms/lua-basexx.git /var/lib/mock/f45-build-17607-501/root/chroot_tmpdir/scmroot/lua-basexx
Cloning into '/var/lib/mock/f45-build-17607-501/root/chroot_tmpdir/scmroot/lua-basexx'...
$ git fetch origin 816a0db8c76ac8634146d88c2d82bd8c2218afae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-basexx
 * [new ref]         816a0db8c76ac8634146d88c2d82bd8c2218afae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 816a0db Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild