Bug fix

* Fixed Expression Editor crash on a statement with no arguments

game/scripts/utility/editor.rpy

@@ -305,12 +305,6 @@ init python:
             else:
                 keywords = ["expression", "face", "xpos", "ypos", "pos", "flip", "trans", "animation", "wand"]
 
-            # Args is an ArgumentInfo object, or None,
-            # the true list of arguments is kept
-            # within the object itself.
-            if args:
-                args = args.arguments
-
             # Arguments are contained within a list,
             # they consist of opaque tuples,
             # each one containing a keyword, and a value.
@@ -319,6 +313,14 @@ init python:
             d = _dict()
             d[who] = _dict()
 
+            # Args is an ArgumentInfo object, or None,
+            # the true list of arguments is kept
+            # within the object itself.
+            if not args:
+                return d
+
+            args = args.arguments
+
             # Resolve arguments for character statements.
             # (There should be a simpler way to do this, right?)
             for i, (key, val) in enumerate(args):