get_region_edges: fix edge case (ha) where empty initial regions cause the count to be off

syntaxgym.py

@@ -265,7 +265,9 @@ class SyntaxGym(evaluate.EvaluationModule):
             ret.append(idx)
 
             region_size = len(region_content)
-            if region_content.strip() != "" and r_idx != 0 and not region_content.startswith(","):
+            # If this is not the first nonspace/nonpunct region, then it will
+            # be preceded by a joining space.
+            if region_content.strip() != "" and idx > 0 and not region_content.startswith(","):
                 # Add joining space
                 region_size += 1