From 89c27cfcca0279e01842a2754b1b1ad4dd7cbaa1 Mon Sep 17 00:00:00 2001
From: Bertrand Songis <bsongis@gmail.com>
Date: Fri, 14 Aug 2015 11:45:09 +0200
Subject: [PATCH] Fixes #2704

---
 radio/src/functions.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/radio/src/functions.cpp b/radio/src/functions.cpp
index 47923651d..ccc03740b 100644
--- a/radio/src/functions.cpp
+++ b/radio/src/functions.cpp
@@ -489,9 +489,11 @@ void evalFunctions()
           }
 
           case FUNC_BACKGND_MUSIC:
-            newActiveFunctions |= (1 << FUNCTION_BACKGND_MUSIC);
-            if (!IS_PLAYING(PLAY_INDEX)) {
-              playCustomFunctionFile(cfn, PLAY_INDEX);
+            if (!(newActiveFunctions & (1 << FUNCTION_BACKGND_MUSIC))) {
+              newActiveFunctions |= (1 << FUNCTION_BACKGND_MUSIC);
+              if (!IS_PLAYING(PLAY_INDEX)) {
+                playCustomFunctionFile(cfn, PLAY_INDEX);
+              }
             }
             break;