[BUG] Uncontrolled input acts as controlled (issue on defaultValue)

[aralroca]

In order to reproduce the issue:

• Use a defaultValue prop on a <input> element
• Causes a render on the onChange event (also it happens in onInput event).

Expected:

• Updating the input element writing whatever inside. The defaultValue only takes the first value, then is updated.

What is happening:

• After writing whatever on the input element; nothing happened. The defaultValue overwrites the updated value.

Comparison React / Preact

Code: https://stackblitz.com/edit/preact-bug-defaultvalue

I reproduced in Preact 10.3.3.

[aralroca]

Sorry, I reported in preact-compat instead of preact. Here is the good one: https://github.com/preactjs/preact/issues/2391