update parser settings

jedi/settings.py

@@ -18,9 +18,15 @@ add_bracket_after_function = False
 # parser
 # ----------------
 
-# Use the fast parser, may cause problems sometimes.
+# Use the fast parser. This means that reparsing is only being done if
+# something has been changed e.g. to a function. If this happens, only the
+# function is being reparsed.
 fast_parser = True
 
+# This is just a debugging option. Always reparsing means that the fast parser
+# is basically useless. So don't use it.
+fast_parser_always_reparse = False
+
 # ----------------
 # dynamic stuff
 # ----------------