fix:table paging

src/editor/core/draw/Draw.ts

@@ -470,11 +470,11 @@ export class Draw {
           let deleteStart = 0
           let deleteCount = 0
           let preTrHeight = 0
+          if (trList.length > 1) {
             for (let r = 0; r < trList.length; r++) {
               const tr = trList[r]
-            if (tr.tdList.length < 2) break
               if (curPagePreHeight + rowMarginHeight + preTrHeight + tr.height > height) {
-              // 暂时不考虑跨列
+                // 是否跨列
                 if (element.colgroup?.length !== tr.tdList.length) {
                   deleteCount = 0
                 }
@@ -485,6 +485,7 @@ export class Draw {
                 preTrHeight += tr.height
               }
             }
+          }
           if (deleteCount) {
             const cloneTrList = trList.splice(deleteStart, deleteCount)
             const cloneTrHeight = cloneTrList.reduce((pre, cur) => pre + cur.height, 0)