Avoid selecting the first item automatically in Open Folder Mode

scene/gui/file_dialog.cpp

@@ -666,7 +666,7 @@ void FileDialog::update_file_list() {
 		files.pop_front();
 	}
 
-	if (mode != FILE_MODE_SAVE_FILE) {
+	if (mode != FILE_MODE_SAVE_FILE && mode != FILE_MODE_OPEN_DIR) {
 		// Select the first file from list if nothing is selected.
 		if (tree->get_root() && tree->get_root()->get_first_child() && tree->get_selected() == nullptr) {
 			tree->get_root()->get_first_child()->select(0);