$ git clone -n https://src.fedoraproject.org/rpms/bison.git /var/lib/mock/f31-build-55811-28154/root/chroot_tmpdir/scmroot/bison
Cloning into '/var/lib/mock/f31-build-55811-28154/root/chroot_tmpdir/scmroot/bison'...
$ git reset --hard 3e95385379a0221754a422a49e6afa44a612854d
HEAD is now at 3e95385 Rebase to 3.4.1 (#1631912)