fix-初次进入构建页面git分支不显示

src/views/student/Code/ProjectDetail/BuildDetail.vue

@@ -1,7 +1,7 @@
 <template>
   <div>
-    <div v-if="detailLoading"><page-section-loading show /></div>
-    <div v-else>
+    <div v-show="detailLoading"><page-section-loading show /></div>
+    <div v-show="!detailLoading">
       <!--空数据处理-->
       <div
         class="page-section"
@@ -140,7 +140,9 @@ export default {
           subject: "构建ID: " + buildItem.id,
           onClick: () => nodeClick(buildItem.id)
         });
+        console.log("DRAW");
       }
+      this.$forceUpdate();
     }
   },
   async mounted() {