fix merge

models/migrations/migrations.go

@@ -348,6 +348,7 @@ var migrations = []Migration{
 	NewMigration("Add Color to ProjectBoard table", addColorColToProjectBoard),
 	// v197 -> v198
 	NewMigration("Add renamed_branch table", addRenamedBranchTable),
+	// v198 -> v199
 	NewMigration("Add issue content history table", addTableIssueContentHistory),
 }
 

models/migrations/v198.go

@@ -0,0 +1,33 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func addTableIssueContentHistory(x *xorm.Engine) error {
+	type IssueContentHistory struct {
+		ID             int64 `xorm:"pk autoincr"`
+		PosterID       int64
+		IssueID        int64              `xorm:"INDEX"`
+		CommentID      int64              `xorm:"INDEX"`
+		EditedUnix     timeutil.TimeStamp `xorm:"INDEX"`
+		ContentText    string             `xorm:"LONGTEXT"`
+		IsFirstCreated bool
+		IsDeleted      bool
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Sync2(new(IssueContentHistory)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	}
+	return sess.Commit()
+}