defaultValue handling is inconsistent

[Rich-Harris]

Describe the bug

I would expect all of these to behave the same. Instead, the static value="initial" in the third form gets treated as a defaultValue.

<script>
	let value = $state('initial');
</script>

<form>
	<input value={value} />
	<button type="reset">reset</button>
</form>

<hr>

<form>
	<input bind:value={value} />
	<button type="reset">reset</button>
</form>

<hr>

<form>
	<input value="initial" />
	<button type="reset">reset</button>
</form>

Another quirk: changing the defaultValue of an <input> erroneously changes the current value, but only if the input has been reset and hasn't been interacted with since, and it doesn't have a non-static value prop (not binding):

<script>
	let value = $state('initial');
	let defaultValue = $state('default');
</script>

<p>reset all forms, then change defaultValue</p>

<label>
	<input bind:value={value} /> value
</label>

<label>
	<input bind:value={defaultValue} /> defaultValue
</label>

<hr>

<form>
	<input {...{ defaultValue }} value={value} />
	<button type="reset">reset</button>
</form>

<hr>

<form>
	<input {...{ defaultValue }} bind:value={value} />
	<button type="reset">reset</button>
</form>

<hr>

<form>
	<input {...{ defaultValue }} value="initial" />
	<button type="reset">reset</button>
</form>

<hr>

<form>
	<input {...{ value, defaultValue }} />
	<button type="reset">reset</button>
</form>