[NetworkX]グラフのノード（エッジ無しだけ）が反映されないバグ

import numpy as np
import networkx as nx
import scipy as sp
import matplotlib.pyplot as plt

G1 = nx.Graph()
G1.add_nodes_from([(A, {"label":"A"}),
("B", {"label":"B"}),
("C", {"label":"C"}),
("D", {"label":"D"}),
("E", {"label":"E"}),
("L", {"label":"L"}),
("K", {"label":"K"})])
G1.add_edges_from([("A","C"), ("A", "D"),
("K", "E"), ("D", "A"),
("A", "B"), ("C", "D")])
print(G1.nodes())
print(G1.edges())
nx.draw(G1,
node_color="lightgreen",
edge_color="lightgreen",
node_size=500,
width=8,
alpha=0.5,
with_labels=True)

nx.nx_agraph.view_pygraphviz(G1, prog='fdp')

G2 = nx.Graph()
G2.add_nodes_from([("A", {"label":"A"}),
("B", {"label":"B"}),
("D", {"label":"D"}),
("E", {"label":"E"}),
("F", {"label":"F"}),
("Q", {"label":"Q"}),
("J", {"label":"J"}),
("X", {"label":"X"})])
G2.add_edges_from([("A","B"), ("Q", "D"),
("J","F"), ("A", "E"),
("D", "F"), ("X","A")])
print(G2.nodes())
print(G2.edges())
nx.draw(G2,
node_color="lightblue",
edge_color="lightblue",
node_size=500,
width=8,
alpha=0.5,
with_labels=True)
nx.nx_agraph.view_pygraphviz(G2, prog='fdp')

G12 = nx.compose(G1,G2)
print("G1 count:", len(G1))
print("G2 count:", len(G2))
print("G1・G2 compose:", len(G12))
print(G12.nodes())