Match causal clauses independently of punctuation attachment

test_syntax_dag.py

@@ -21,6 +21,10 @@ class SyntaxDAGTest(unittest.TestCase):
     def test_causal_commit(self):
         text = "The road flooded because it rained.  They waited."
         graph = self.encoder.encode(text)
+        self.assertEqual(len(graph.proposals), 1, [
+            (token.text, token.head.text, token.dep_, token.pos_, token.tag_)
+            for token in self.encoder.nlp(text)
+        ])
         proposal, = graph.proposals
         self.assertTrue(any(
             len({edge.source for edge in graph.edges if edge.target == node}) > 1