[composer] fix export atlas as image crash (fixes #16623)

nirvn · web-flow · commit e0cad1fb4f5e · 2017-05-26T11:58:02.000+07:00
diff --git a/src/app/composer/qgscomposer.cpp b/src/app/composer/qgscomposer.cpp
@@ -2136,6 +2136,7 @@ void QgsComposer::exportCompositionAsImage( QgsComposer::OutputMode mode )
     QFileDialog dlg( this, tr( "Export atlas to directory" ) );
     dlg.setFileMode( QFileDialog::Directory );
     dlg.setOption( QFileDialog::ShowDirsOnly, true );
+    dlg.setOption( QFileDialog::DontUseNativeDialog, true );
     dlg.setDirectory( lastUsedDir );
 
     //
