From 1092009541430c711676efb95b876598f59bb53c Mon Sep 17 00:00:00 2001
From: xuri <xuri.me@gmail.com>
Date: Sat, 3 Aug 2019 23:10:01 +0800
Subject: [PATCH] Fixed doc corruption when deleting all merged cells

---
 adjust.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/adjust.go b/adjust.go
index f26f132..ccc5ce9 100644
--- a/adjust.go
+++ b/adjust.go
@@ -54,6 +54,11 @@ func (f *File) adjustHelper(sheet string, dir adjustDirection, num, offset int)
 	}
 	checkSheet(xlsx)
 	checkRow(xlsx)
+
+	if xlsx.MergeCells != nil && len(xlsx.MergeCells.Cells) == 0 {
+		xlsx.MergeCells = nil
+	}
+
 	return nil
 }
 
@@ -283,8 +288,6 @@ func (f *File) deleteMergeCell(sheet *xlsxWorksheet, idx int) {
 	if len(sheet.MergeCells.Cells) > idx {
 		sheet.MergeCells.Cells = append(sheet.MergeCells.Cells[:idx], sheet.MergeCells.Cells[idx+1:]...)
 		sheet.MergeCells.Count = len(sheet.MergeCells.Cells)
-	} else {
-		sheet.MergeCells = nil
 	}
 }