Fix Valentina crash adding internal path did not increment this object

reference.

--HG--
branch : develop

src/libs/vtools/tools/nodeDetails/vtoolpiecepath.cpp

@@ -241,6 +241,7 @@ void VToolPiecePath::AddToFile()
         if (path.GetType() == PiecePathType::InternalPath)
         {
             newDet.GetInternalPaths().append(m_id);
+            incrementReferens(); // Manually increment reference since in this case a piece tool will not do this for us
         }
         else if (path.GetType() == PiecePathType::CustomSeamAllowance)
         {
@@ -248,6 +249,7 @@ void VToolPiecePath::AddToFile()
             record.path = m_id;
 
             newDet.GetCustomSARecords().append(record);
+            incrementReferens(); // Manually increment reference since in this case a piece tool will not do this for us
         }
 
         qApp->getUndoStack()->push(new SavePieceOptions(oldDet, newDet, doc, m_pieceId));

src/libs/vtools/tools/nodeDetails/vtoolpin.cpp

@@ -147,6 +147,7 @@ void VToolPin::AddToFile()
         VPiece newDet = oldDet;
 
         newDet.GetPins().append(m_id);
+        incrementReferens(); // Manually increment reference since in this case a piece tool will not do this for us
 
         qApp->getUndoStack()->push(new SavePieceOptions(oldDet, newDet, doc, m_pieceId));
     }

src/libs/vtools/tools/nodeDetails/vtoolplacelabel.cpp

@@ -197,6 +197,7 @@ void VToolPlaceLabel::AddToFile()
         VPiece newDet = oldDet;
 
         newDet.GetPlaceLabels().append(m_id);
+        incrementReferens(); // Manually increment reference since in this case a piece tool will not do this for us
         qApp->getUndoStack()->push(new SavePieceOptions(oldDet, newDet, doc, m_pieceId));
     }
 }