Summary

Investigate why the `data-on-signal-patch` event handler is being triggered twice for file input elements. The goal is to ensure the handler executes only once per file upload to prevent duplicate backend requests and console logs.

Skills Required

Files Likely Touched

• library/src/bundles/datastar.ts
• library/src/plugins/attributes/on.ts
• library/src/engine/signals.ts
• tests/directives/on.test.ts

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