Mixer: Fix segfault in module paste.

mixer/src/Module.C

@@ -190,8 +190,15 @@ Module::paste_before ( void )
 {
     Module *m = _copied_module_empty;
 
-    m->chain( chain() );
     Log_Entry le( _copied_module_settings );
+    le.remove( ":chain" );
+
+    char *print = le.print();
+
+    DMESSAGE( "Pasting settings: %s", print );
+
+    free( print );
+
     m->set( le );
 
     if ( ! chain()->insert( this, m ) )
@@ -203,7 +210,7 @@ Module::paste_before ( void )
     _copied_module_settings = NULL;
     _copied_module_empty = NULL;
 
-    /* set up for another copy */
+    /* set up for another paste */
     m->copy();
 }
 
@@ -429,6 +436,26 @@ Module::set ( Log_Entry &e )
 
 
 
+void
+Module::chain ( Chain *v )
+{
+    if ( _chain != v )
+    {
+        DMESSAGE( "Adding module %s in to chain %s", label(), v ? v->name() : "NULL" );
+
+        _chain = v; 
+
+        for ( int i = 0; i < ncontrol_inputs(); ++i )
+        {
+            control_input[i].update_osc_port();
+        }
+    }
+    else
+    {
+        DMESSAGE( "Module %s already belongs to chain %s", label(), v ? v->name() : "NULL" );
+    }
+}
+
 /* return a string serializing this module's parameter settings.  The
    format is 1.0:2.0:... Where 1.0 is the value of the first control
    input, 2.0 is the value of the second control input etc.

mixer/src/Module.H

@@ -373,18 +373,7 @@ public:
         }
 
     Chain *chain ( void ) const { return _chain; }
-    void chain ( Chain * v )
-        {
-            if ( _chain != v )
-            {
-                _chain = v; 
-
-                for ( int i = 0; i < ncontrol_inputs(); ++i )
-                {
-                    control_input[i].update_osc_port();
-                }
-            }
-        }
+    void chain ( Chain * v );
 
     char *get_parameters ( void ) const;
     void set_parameters ( const char * );

nonlib/Log_Entry.C

@@ -280,6 +280,19 @@ Log_Entry::get ( int n, const char **name, const char **value ) const
 }
 
 
+void
+Log_Entry::remove ( const char *name )
+{
+    for ( int i = 0; i < _i; i++ )
+    {
+        if ( !strcmp( _sa[ i ], name ) )
+        {
+            free( _sa[i] );
+            _sa[i] = NULL;
+        }
+    }
+}
+
 char **
 Log_Entry::sa ( void )
 {

nonlib/Log_Entry.H

@@ -88,6 +88,9 @@ public:
 /*             _sa.push( p ); \ */
 /*         } \ */
 
+
+    void remove ( const char *s );
+
     ADD( int, "%d", v );
     ADD( nframes_t, "%lu", (unsigned long)v );
     ADD( unsigned long, "%lu", v );