[fix] use alphanumeric in generated component configs by default

scripts/geodata/addresses/components.py

@@ -463,12 +463,19 @@ class AddressComponents(object):
 
         values = []
         probs = []
-        for num_type in (self.NULL_PHRASE, self.ALPHANUMERIC_PHRASE, self.STANDALONE_PHRASE):
+        for num_type in (self.ALPHANUMERIC_PHRASE, self.NULL_PHRASE, self.STANDALONE_PHRASE):
             key = '{}_probability'.format(num_type)
             prob = prob_dist.get(key)
             if prob is not None:
                 values.append(num_type)
                 probs.append(prob)
+            elif num_type in prob_dist:
+                values.append(num_type)
+                probs.append(1.0)
+                break
+
+        if not probs:
+            return None
 
         probs = cdf(probs)
         num_type = weighted_choice(values, probs)