From 064b74350724df341c4ce977d2ad0ecd449f3cd6 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Fri, 25 Feb 2022 02:37:53 -0500
Subject: [PATCH] enforce .dmf extension when saving as legacy

---
 src/gui/gui.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 2cb3ecfe2..8b49da085 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -4874,6 +4874,9 @@ bool FurnaceGUI::loop() {
               checkExtension(".dmf");
             }
           }
+          if (curFileDialog==GUI_FILE_SAVE_DMF_LEGACY) {
+            checkExtension(".dmf");
+          }
           if (curFileDialog==GUI_FILE_SAMPLE_SAVE ||
               curFileDialog==GUI_FILE_EXPORT_AUDIO_ONE ||
               curFileDialog==GUI_FILE_EXPORT_AUDIO_PER_SYS ||