Uncomment upgrade for 3.9 (#6336)

* Uncomment upgrade for 3.9

* Add 3.9.0 to model/version.go

store/sql_upgrade.go

@@ -255,11 +255,10 @@ func UpgradeDatabaseToVersion38(sqlStore *SqlStore) {
 }
 
 func UpgradeDatabaseToVersion39(sqlStore *SqlStore) {
-	// TODO: Uncomment following condition when version 3.9.0 is released
-	//if shouldPerformUpgrade(sqlStore, VERSION_3_8_0, VERSION_3_9_0) {
-	sqlStore.CreateColumnIfNotExists("OAuthAccessData", "Scope", "varchar(128)", "varchar(128)", model.DEFAULT_SCOPE)
-	sqlStore.RemoveTableIfExists("PasswordRecovery")
+	if shouldPerformUpgrade(sqlStore, VERSION_3_8_0, VERSION_3_9_0) {
+		sqlStore.CreateColumnIfNotExists("OAuthAccessData", "Scope", "varchar(128)", "varchar(128)", model.DEFAULT_SCOPE)
+		sqlStore.RemoveTableIfExists("PasswordRecovery")
 
-	//	saveSchemaVersion(sqlStore, VERSION_3_9_0)
-	//}
+		saveSchemaVersion(sqlStore, VERSION_3_9_0)
+	}
 }