Fix RWKV tokenizer

modules/models.py

@@ -90,7 +90,7 @@ def load_model(model_name):
         from modules.RWKV import RWKVModel, RWKVTokenizer
 
         model = RWKVModel.from_pretrained(Path(f'{shared.args.model_dir}/{model_name}'), dtype="fp32" if shared.args.cpu else "bf16" if shared.args.bf16 else "fp16", device="cpu" if shared.args.cpu else "cuda")
-        tokenizer = RWKVTokenizer.from_pretrained(Path(shared.model_name))
+        tokenizer = RWKVTokenizer.from_pretrained(Path(shared.args.model_dir))
 
         return model, tokenizer