Branch name null bug

[emir-karabeg]

Summary

Fixes a bug where conditional subblock parameters (like branchName in the Cursor block) were not being included in the serialized block configuration if the conditioning field's stored value was null, even when that field had a default value function that would satisfy the condition.

The issue stemmed from default values not being applied to allValues before condition evaluation in the serializer's extractParams function.

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation
• Other: ___________

Testing

The existing test suite was run and passed. A new test case was added to apps/sim/serializer/index.test.ts to specifically cover the scenario where a conditional field's inclusion depends on a conditioning field with a default value.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Screenshots/Videos

---

 

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

1 Skipped Deployment

Project	Deployment	Review	Updated (UTC)
docs	Skipped		Dec 20, 2025 0:17am