fix:输入地址无匹配项不显示

uni_modules/uni-combox/components/uni-combox/uni-combox.vue

@@ -8,7 +8,7 @@
       <uni-icons v-if="!inputVal || !clearAble" :type="showSelector ? 'top' : 'bottom'" size="14" color="#999" @click="toggleSelector"> </uni-icons>
       <uni-icons v-if="inputVal && clearAble" type="clear" size="24" color="#999" @click="clean"> </uni-icons>
     </view>
-    <view class="uni-combox__selector" v-if="showSelector" ref="dropdownRef">
+    <view class="uni-combox__selector" v-if="showSelector && candidates.length !== 0" ref="dropdownRef">
       <view class="uni-popper__arrow"></view>
       <scroll-view scroll-y="true" class="uni-combox__selector-scroll">
         <view class="uni-combox__selector-empty" v-if="candidates.length === 0">