workflow_log, keyword is useless when using Chinese characters

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

Version: 0.8.3 get workflow_log, keyword is useless when using Chinese characters

I'm using dify 0.8.3, and when i search the workflow logs when using chinese, it's useless.

an example of my log:

the keyword:

without Chinese:

2. Additional context or comments

When I called through the API, the keyword still didn't work.