Fix allowed_prefixes parsing, again

Author: luispabon

src/io.py

@@ -86,7 +86,7 @@ def parse_input(self) -> Options:
             ignore_branches = []
 
         allowed_prefixes_raw: str = "" if args.allowed_prefixes is None else args.allowed_prefixes
-        allowed_prefixes = args.allowed_prefixes_raw.split(',')
+        allowed_prefixes = allowed_prefixes_raw.split(',')
         if allowed_prefixes == ['']:
             allowed_prefixes = []