Syntax highlighting not completely suspended in template comments

[h-h-h-h]

I can only reproduce in within <svg> tags:

<template>
  <svg>
    <!-- <Foo
      bar="bar"
      v-if="shown"
      baz="baz"
      v-for="index in count"
      qux="qux"
      :quux="quux"
      @click="doIt"
      v-custom="bla"
      quuz="quuz" /> -->
  </svg>
  <sv>
    <!-- <Foo
      bar="bar"
      v-if="shown"
      baz="baz"
      v-for="index in count"
      qux="qux"
      :quux="quux"
      @click="doIt"
      v-custom="bla"
      quuz="quuz" /> -->
  </sv>
  <div>
    <!-- <Foo
      bar="bar"
      v-if="shown"
      baz="baz"
      v-for="index in count"
      qux="qux"
      :quux="quux"
      @click="doIt"
      v-custom="bla"
      quuz="quuz" /> -->
  </div>
</template>

For me, it looks like this: