Fix: Spelling causes hotwords to not take effect (#2444)

nianjiuhuiyi

2025-03-20 0d6e6a2fb8581f21002f8c25ad5413e8ec694386

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ID0012W0013 https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav
ID0012W0014 https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_en.wav