Empty Textarea slightly shifts form on submission during disabled state

Environment

Nuxt project info:

Is this bug related to Nuxt or Vue?

Nuxt

Package

v4.x

Version

v4.8.1

Reproduction

Having this page shows the error in an otherwise empty/new project.

<script setup lang="ts">
  const state = reactive({
    title: '',
    description: '',
  });

  function secondDelay() {
    return new Promise((resolve) => {
      setTimeout(() => {
        resolve(true);
      }, 2000);
    });
  }

  async function submit() {
    await secondDelay();
    console.log('Form submitted:', state);
  }
</script>

<template>
  <div class="test">
    <UForm :state="state" @submit="submit">
      <UFormField label="Title">
        <UInput v-model="state.title" placeholder="Title" />
      </UFormField>
       <UFormField label="Description">
        <UTextarea v-model="state.description" />
      </UFormField>
      <UButton type="submit">Submit</UButton>
    </UForm>
  </div>
</template>

Description

When the submit button is pressed, a small margin/padding something slightly shifts the layout.
Before clicking:

while form is disabled during submission:

This only happens when the Textarea is empty. As soon as there's content in the Textarea, (even white space), the shift doesn't happen anymore.

Additional context

No response

Logs

Start with the provided Nuxt reproduction using UForm, UFormField, UInput, UTextarea, and UButton, then inspect the UTextarea and form disabled-state behavior. Confirm the layout shift occurs only for an empty textarea during submission, and add a regression test or equivalent verification showing that the form geometry remains stable.