Small issue with the trim Modifier

[Olmah]

I have a small issue with the trim Modifier:
on a standard input v-model.trim trims only on blur, however, using defineModel on a child input it will trim on Backspace

Example

Parent

<script setup>
import { ref } from 'vue'
import Child from 'Child.vue'

const testModel = ref("foo        bar")
</script>

<template>
  <Child v-model.trim="testModel" />
</template>

Child

<script setup>
const model = defineModel()
</script>

<template>
  <input v-model="model" />
</template>

If I Backspace 'bar' the cursor will jump to the end of 'foo' -- I would expect the result to be 'foo ' until blur.
It does this with single spaces as well.

I've tried this in Playground with the same result.