Input value attribute gets set to "undefined"

[fatmirsukaliq]

Describe the bug
When value on form elements not provided, it renders <input type="radio" value="undefined"/>, instead of just not rendering the value attribute at all.

To Reproduce
https://svelte.dev/repl/c06ad00f7e08410c813f7adbb746734a?version=3.22.3

Expected behavior
I expected this to be rendered: <input type="radio" />

Severity
Medium

[antony]

Use null to render an empty value attribute. An undefined variable will be seen as a value of undefined across all input fields.

https://svelte.dev/repl/88d8046cc4ac4fd3b8789020d66ced7e?version=3.22.3

[fatmirsukaliq]

@antony thanks on your response, but curious why is bind:value getting different treatment:

#4849 (comment)

this was already merged into master