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Dify version

1.9.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

First step: create an input parameter named Files and type Array[File]
Second step: create node iteration and set input Files
Then run whole chatflow

✔️ Expected Behavior

No error and run test success

❌ Actual Behavior

Check log raise AssertionError("this statement should be unreachable.")