message: fix comment editing
diff: />
  </template>
  <template v-else>
  - <form-comment :comment-model="model" @submit="onCommentEdit" @cancel="isEditing = false" />
  + <form-comment
  + :model="comment"
  + :comment-model="model"
  + @submit="onCommentEdit"
  + @cancel="isEditing = false"
  + />
  </template>
  </template>
  