修复插入行导致mege出现undefined的问题

src/core.js

@@ -339,7 +339,8 @@ function initSheet(sheet, cellAuthority, authority) {
     // 只能禁止整体编辑，设置例外区域
     sheet.config.authority = {
       sheet: 1,
-      hintText: "第一列禁止编辑！",
+      hintText: "列禁止编辑！",
+      insertColumns: 0,
       allowRangeList: [
         // 第一列以外都能编辑
         {

src/global/extend.js

@@ -46,10 +46,10 @@ function luckysheetextendtable(type, index, value, direction, sheetIndex) {
     for(let m in cfg["merge"]){
         let mc = cfg["merge"][m];
 
-        let r = mc.r,
-            c = mc.c,
-            rs = mc.rs,
-            cs = mc.cs;
+        let r = mc.r || 0,
+            c = mc.c || 0,
+            rs = mc.rs || 0,
+            cs = mc.cs || 0;
 
         if(type == "row"){
             if(index < r){

src/global/refresh.js

@@ -111,7 +111,7 @@ function jfrefreshgrid(data, range, allParam, isRunExecFunction = true, isRefres
             "dynamicArray": $.extend(true, [], file["dynamicArray"]),
             "curDynamicArray": curDynamicArray,
             "range": range,
-            "dataRange": [...file.luckysheet_select_save]// 保留操作时的选区
+            "dataRange": file.luckysheet_select_save ? [...file.luckysheet_select_save] : []// 保留操作时的选区
         });
     }