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1. Is this request related to a challenge you're experiencing? Tell me about your story.
Currently, after creating a new chatflow, we do not include the query_prompt_template in the LLM node data until it is edited:

We need to include this part of the data once the File variable is supported in the prompt template.
The expected structure of the data should be:

2. Additional context or comments
This issue won't cause an error after #11031 is merged, but we still need to fix it.
3. Can you help us with this feature?
- I am interested in contributing to this feature.