修复模块插入时获取最深节点错误的问题

src/DatabaseServices/Template/TempateUtils.ts

@@ -27,16 +27,16 @@ import { TemplateRecord } from "./TemplateRecord";
  */
 export function GetDeepestTemplate(brs: Board[]): TemplateRecord | undefined
 {
-    let minDepth = Infinity;
+    let maxDepth = -Infinity;
     let deepestTemplate: TemplateRecord;
     for (let br of brs)
     {
         if (br.Template && br.Template.Object)
         {
             let template = br.Template.Object as TemplateRecord;
-            if (template.NodeDepth < minDepth)
+            if (template.NodeDepth > maxDepth)
             {
-                minDepth = template.NodeDepth;
+                maxDepth = template.NodeDepth;
                 deepestTemplate = template;
             }
         }

src/DatabaseServices/Template/TemplateTest.ts

@@ -187,7 +187,7 @@ export class UpdateTemplate
             Filter: {
                 filterFunction: (obj, ent) =>
                 {
-                    return ent.Template !== undefined;
+                    return ent && ent.Template !== undefined;
                 }
             }
         });