Timeline: Fix error in reference counting of newly recorded clips.

timeline/src/Engine/Audio_File.C

@@ -147,8 +147,6 @@ done:
 
     _open_files[ std::string( filename ) ] = a;
 
-    a->_refs = 1;
-
     return a;
 }
 

timeline/src/Engine/Audio_File.H

@@ -72,7 +72,7 @@ public:
             _path =_filename = NULL;
             _samplerate = 0;
             _length = _channels = 0;
-            _refs = 0;
+            _refs = 1;
         }
 
     virtual ~Audio_File ( );