fix #2587: Resolve VAD multithreading issue (#2613)

majic31

2025-08-14 5115a066c971b2380c98f9be168e14869053eda1

 funasr/models/fsmn_vad_streaming/model.py

@@ -652,10 +652,11 @@
        key: list = None,
        tokenizer=None,
        frontend=None,
        cache: dict = {},
        cache: dict = None,
        **kwargs,
    ):

        if cache is None:
            cache = {}
        if len(cache) == 0:
            self.init_cache(cache, **kwargs)