What gets passed to the when prop of a Show still gets executed twice on SSR #4518

Describe the bug

Basically the same as #2406, but it still happens on the server, and has even more serious implications when you pass elements, because they get a new hydration key for each run, which doesn't happen on the client, thus creating a hydration mismatch.
This is a v1 issue

Your Example Website or App

https://playground.solidjs.com/anonymous/00265201-7751-427d-aaa4-8d1a6d4a01da

Steps to Reproduce the Bug or Issue

1. Read the playground's output

Expected behavior

I expected "1.9.15 server: 2 reads" to be "1.9.15 server: 1 reads" both on "keyed=false" and "keyed=true"

Screenshots or Videos

No response

Platform

• OS: Windows
• Browser: Edge (Chromium)
• Version: 156.0.4314.50

Additional context

• It was fixed on the client after v1.9.4
• Doesn't happen in v2.0.0-rc.20
• Claude created the repro, hope it's clear
• Doesn't seem to happen on Switch and Match