$ git clone -n https://src.fedoraproject.org/rpms/libtdb.git /var/lib/mock/f31-build-94893-32519/root/chroot_tmpdir/scmroot/libtdb
Cloning into '/var/lib/mock/f31-build-94893-32519/root/chroot_tmpdir/scmroot/libtdb'...
$ git reset --hard e598ffa665ca35471f9b80eda3804cf0eabe65ff
HEAD is now at e598ffa - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild