From a3d40eb763c3ea5bee505fe3f04fd04171f599e7 Mon Sep 17 00:00:00 2001
From: Uwe Klotz <uklotz@mixxx.org>
Date: Tue, 6 Jul 2021 18:23:59 +0200
Subject: [PATCH] Fix debug assertion when exporting invalid bpm as file tag

---
 src/track/taglib/trackmetadata_common.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/track/taglib/trackmetadata_common.h b/src/track/taglib/trackmetadata_common.h
index 42ef4940354..8dacf929e1e 100644
--- a/src/track/taglib/trackmetadata_common.h
+++ b/src/track/taglib/trackmetadata_common.h
@@ -71,8 +71,11 @@ inline TagLib::String uuidToTString(
 
 inline QString formatBpm(
         const TrackMetadata& trackMetadata) {
-    return Bpm::valueToString(
-            trackMetadata.getTrackInfo().getBpm().value());
+    const Bpm bpm = trackMetadata.getTrackInfo().getBpm();
+    if (!bpm.isValid()) {
+        return {};
+    }
+    return Bpm::valueToString(bpm.value());
 }
 
 bool parseBpm(