Fixing separator insertion in horizontal header when vertical header is visible.

radixwidgets/tableview.cc

@@ -84,6 +84,10 @@ void TableView::copy()
   // add column headers
   if (horizontalHeader()->isVisible())
   {
+    if (verticalHeader()->isVisible())
+    {
+      data.append(p->separator);
+    }
     for (auto col : cols)
     {
       data.append(chmodel->headerData(col, Qt::Horizontal).toString())