fix: return default object if errorsBag is undefined

[flozdra]

🔗 Linked issue

None

❓ Type of change

• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

In the following case :

• Client: submits an invalid form.
• Server: returns validation errors in the errors prop from the session errorsBag.
• Client: resubmits the valid form.
• Server: finds no errors inside the errorsBag, so the errors prop returned is undefined.
• Client : does not update the errors prop, causing Inertia's useForm to still consider there is an error.

This PR resolves the issue by always returning an object in the #resolveValidationErrors function, ensuring the errors prop is always merged and up to date client-side.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[github-actions]

This pull request has been marked as stale because it has been inactive for more than 21 days. Please reopen if you still intend to submit this pull request

[RomainLanz]

Hey @flozdra! 👋🏻

Thanks for the PR!

Are you able to add a test to ensure this works as expected?

[flozdra]

Hello @RomainLanz!
I added a test case, and it does not pass without the PR changes 😉

[RomainLanz]

Perfect!

Thanks 🫶