[🐞] Change input value from "something" to undefined sets the value as "null"

[gnemanja]

Which component is affected?

Qwik Runtime

Describe the bug

If you set the value of an input from string to undefined, "null" be written

Reproduction

https://qwikdev-build-v2.qwik-8nx.pages.dev/playground/#f=Q0o0JpYG2BKNDqL2pbBVAq3u83NTIbWGLcJkDWDZnZoGLEJSNLm4gErJb8MA5TPBtT8wf5YCK3K4dXpggVpQkMADDNySQVTg1RqatnYgl0IAmlage9WT8%2FNzFNWhKmpr7cAaFYAlbUm%2BQnJGYh6wVAJXnUAeUCW8rUS2hfBgIWglRAdQDK4F1Xbkth3uzGpoidQcJSWzoiSI0axKi6wKAA

Steps to reproduce

Initial value is undefiend

1. Click the first button to set it to 'cool'
2. Click the second button to set it to undefined
   The value will be null

System Info

not applicable

Additional Information

No response

[wmertens]

Thanks for the repro, confirmed issue in v2 but not v1