value parameter of createEffect is not passed to on as prevValue when defer is true.

[vveisard]

Describe the bug

The value parameter of createEffect is not passed to on as prevValue when defer is true.

Your Example Website or App

https://playground.solidjs.com/anonymous/61004170-6d09-4ce2-9582-ce966c7a131d

Steps to Reproduce the Bug or Issue

1. Go to https://playground.solidjs.com/anonymous/61004170-6d09-4ce2-9582-ce966c7a131d
2. Observe Console tab in Result panel that prevValue is undefined for the on block when defer: true.

on with defer: true
    1 undefined undefined

Expected behavior

As a user, I expect value parameter of createEffect to be passed to on as prevValue when defer: true.

Screenshots or Videos

No response

Platform

• OS: Windows
• Browser: Microsoft Edge
• Version: 121.0.2277.98 (Official build) (64-bit)

Additional context

Perhaps I am misunderstanding the desired behavior of OnOptions.defer, but this seems like a bug to me.

[ryansolid]

Yeah you are right. We returnundefined from the first defer run but we should probably forward the prevValue