From a087e9ea74c56616332468563aea989888ce4673 Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <kroluku@gmail.com>
Date: Wed, 19 Dec 2018 09:19:37 +0200
Subject: [PATCH] Fixed issue #909. Valentina produces wrong united path.

--HG--
branch : release
---
 ChangeLog.txt                  |  1 +
 src/libs/vpatterndb/vpiece.cpp | 13 +++++++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/ChangeLog.txt b/ChangeLog.txt
index 494bd6bc9..1e4e2c312 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,6 +1,7 @@
 # Version 0.6.2 (unreleased)
 - [#903] Bug in tool Cut Spline path.
 - [#905] Valentina crashes with error: This id is not unique.
+- [#909] Valentina produces wrong united path.
 
 # Version 0.6.1 October 23, 2018
 - [#885] Regression. Broken support for multi size measurements.
diff --git a/src/libs/vpatterndb/vpiece.cpp b/src/libs/vpatterndb/vpiece.cpp
index fb08f8578..9038fa05e 100644
--- a/src/libs/vpatterndb/vpiece.cpp
+++ b/src/libs/vpatterndb/vpiece.cpp
@@ -928,8 +928,17 @@ QVector<VPieceNode> VPiece::GetUnitedPath(const VContainer *data) const
                 continue;
             }
 
-            const QVector<VPieceNode> midBefore = united.mid(0, indexStartPoint+1);
-            const QVector<VPieceNode> midAfter = united.mid(indexEndPoint, united.size() - midBefore.size());
+            QVector<VPieceNode> midBefore;
+            QVector<VPieceNode> midAfter;
+            if (indexStartPoint <= indexEndPoint)
+            {
+                midBefore = united.mid(0, indexStartPoint+1);
+                midAfter = united.mid(indexEndPoint, united.size() - midBefore.size());
+            }
+            else
+            {
+                midBefore = united.mid(indexEndPoint, indexStartPoint+1);
+            }
 
             QVector<VPieceNode> customNodes = data->GetPiecePath(records.at(i).path).GetNodes();
             if (records.at(i).reverse)