【报Bug】textarea placeholder 占位符增高

示例代码：

<template>  
    <view>  
        <uni-nav-bar :fixed="true" :border="false" :statusBar="true" left-icon="closeempty" right-icon="plusempty" title="发动态" @clickLeft="leftAction()" @clickRight="rightAction()"></uni-nav-bar>  
        <view style="width: 750rpx;background-color: #FFFFFF;margin: 32rpx;">  
            <textarea v-model="publish.text" :show-confirm-bar="false"  placeholder="记录下此刻发布心情" />  
        </view>  
    </view>  
</template>  

<script>  
    export default {  
        data() {  
            return {  
                publish:{  
                    text:''  
                },  
            }  
        },  
        methods: {  
            leftAction:function(){  
                uni.navigateBack()  
            },  
            rightAction:function(){  

            }  
        }  
    }  
</script>  

<style>  
</style> 

操作步骤：

<template>  
    <view>  
        <uni-nav-bar :fixed="true" :border="false" :statusBar="true" left-icon="closeempty" right-icon="plusempty" title="发动态" @clickLeft="leftAction()" @clickRight="rightAction()"></uni-nav-bar>  
        <view style="width: 750rpx;background-color: #FFFFFF;margin: 32rpx;">  
            <textarea v-model="publish.text" :show-confirm-bar="false"  placeholder="记录下此刻发布心情" />  
        </view>  
    </view>  
</template>  

<script>  
    export default {  
        data() {  
            return {  
                publish:{  
                    text:''  
                },  
            }  
        },  
        methods: {  
            leftAction:function(){  
                uni.navigateBack()  
            },  
            rightAction:function(){  

            }  
        }  
    }  
</script>  

<style>  
</style> 

预期结果：

<template>  
    <view>  
        <uni-nav-bar :fixed="true" :border="false" :statusBar="true" left-icon="closeempty" right-icon="plusempty" title="发动态" @clickLeft="leftAction()" @clickRight="rightAction()"></uni-nav-bar>  
        <view style="width: 750rpx;background-color: #FFFFFF;margin: 32rpx;">  
            <textarea v-model="publish.text" :show-confirm-bar="false"  placeholder="记录下此刻发布心情" />  
        </view>  
    </view>  
</template>  

<script>  
    export default {  
        data() {  
            return {  
                publish:{  
                    text:''  
                },  
            }  
        },  
        methods: {  
            leftAction:function(){  
                uni.navigateBack()  
            },  
            rightAction:function(){  

            }  
        }  
    }  
</script>  

<style>  
</style>  

实际结果：

<template>  
    <view>  
        <uni-nav-bar :fixed="true" :border="false" :statusBar="true" left-icon="closeempty" right-icon="plusempty" title="发动态" @clickLeft="leftAction()" @clickRight="rightAction()"></uni-nav-bar>  
        <view style="width: 750rpx;background-color: #FFFFFF;margin: 32rpx;">  
            <textarea v-model="publish.text"  :show-confirm-bar="false"  placeholder="记录下此刻发布心情" />  
        </view>  
    </view>  
</template>  

<script>  
    export default {  
        data() {  
            return {  
                publish:{  
                    text:''  
                },  
            }  
        },  
        methods: {  
            leftAction:function(){  
                uni.navigateBack()  
            },  
            rightAction:function(){  

            }  
        }  
    }  
</script>  

<style>  
</style>