pass --working-copy parameter all the way down to drush make

install.hostmaster.inc

@@ -151,7 +151,12 @@ function drush_provision_hostmaster_install($site = NULL) {
     'root' => $platform,
     'makefile' => drush_get_option('makefile'),
   ));
-  provision_backend_invoke($platform_name, 'provision-verify');
+  // propagate working-copy args downward
+  $options = array();
+  if (drush_get_option('working-copy')) {
+    $options['working-copy'] = 1;
+  }
+  provision_backend_invoke($platform_name, 'provision-verify', array(), $options);
 
   // exit if an error has occured. 
   if (drush_get_error()) {

platform/verify.provision.inc

@@ -47,7 +47,12 @@ function drush_provision_drupal_pre_provision_verify() {
     // create a platform from a makefile, if it doesnt already exist and the makefile does.
     if (!provision_file()->exists(d()->root)->status() && !empty(d()->makefile)) {
       drush_log(dt("Platform path does not exists, fetching from drush makefile"));
-      drush_backend_invoke("make", array(d()->makefile, d()->root), array('root' => null, 'uri' => null));
+      $options = array('root' => null, 'uri' => null);
+      // propagate working-copy args downward
+      if (drush_get_option('working-copy')) {
+        $options['working-copy'] = 1;
+      }
+      drush_backend_invoke("make", array(d()->makefile, d()->root), $options);
       if (drush_get_error()) {
         return drush_set_error("DRUSH_MAKE_FAILED", 
           "Could not download platform using drush make. No platform present");