message: fix scroll minHeight bug
diff: <template>
  <div ref="wrapper" class="list-wrapper">
  <div class="scroll-content">
  + <div ref="listWrapper">
  <slot>
  - <ul ref="list" class="list-content">
  + <ul class="list-content">
  <li @click="clickItem($event,item)" class="list-item" v-for="item in data">{{item}}</li>
  </ul>
  </slot>
  + </div>
  <slot name="pullup"
  :pullUpLoad="pullUpLoad"
  :isPullUpLoad="isPullUpLoad"
  if (!this.$refs.wrapper) {
  return
  }
  - if (this.$refs.list && (this.pullDownRefresh || this.pullUpLoad)) {
  - this.$refs.list.style.minHeight = `${getRect(this.$refs.wrapper).height + 1}px`
  + if (this.$refs.listWrapper && (this.pullDownRefresh || this.pullUpLoad)) {
  + this.$refs.listWrapper.style.minHeight = `${getRect(this.$refs.wrapper).height + 1}px`
  }
  let options = {
  