MythMusic: Don't stop playback when ejecting a CD/DVD drive

Don't assume that all the tracks on the active playlist was removed when we
receive a media changed event for an ejected CD/DVD.

Fixes #11708.

mythplugins/mythmusic/mythmusic/main.cpp

@@ -480,7 +480,7 @@ static void handleCDMedia(MythMediaDevice *cd)
             gMusicData->all_playlists->getActive()->removeAllCDTracks();
         }
 
-        gPlayer->activePlaylistChanged(-1, true);
+        gPlayer->activePlaylistChanged(-1, false);
         gPlayer->sendCDChangedEvent();
 
         return;