Fix for saving on Windows

src/mainwindow.cpp

@@ -1072,9 +1072,9 @@ void MainWindow::importPrivKey() {
 void MainWindow::exportTransactions() {
     // First, get the export file name
     QString exportName = "hush-transactions-" + QDateTime::currentDateTime().toString("yyyyMMdd") + ".csv";
-
-    QUrl csvName = QFileDialog::getSaveFileUrl(this,
-            tr("Export transactions"), exportName, "CSV file (*.csv)");
+	QDir docsDir(QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation));
+	QUrl pName = QUrl::fromLocalFile(docsDir.filePath(exportName));
+	QUrl csvName = QFileDialog::getSaveFileUrl(this, tr("Export transactions"), pName, "CSV file (*.csv)");
 
     if (csvName.isEmpty())
         return;
@@ -1108,7 +1108,8 @@ void MainWindow::backupWalletDat() {
         return;
     }
 
-    QUrl backupName = QFileDialog::getSaveFileUrl(this, tr("Backup wallet.dat"), backupDefaultName, "Data file (*.dat)");
+    QUrl pName = QUrl::fromLocalFile(hushdir.filePath(backupDefaultName));
+    QUrl backupName = QFileDialog::getSaveFileUrl(this, tr("Backup wallet.dat"), pName, "Data file (*.dat)");
     if (backupName.isEmpty())
         return;