Index: multiblock.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/multiblock/multiblock.module,v
retrieving revision 1.1.4.11
diff -u -r1.1.4.11 multiblock.module
--- multiblock.module	24 Jan 2009 20:57:25 -0000	1.1.4.11
+++ multiblock.module	1 Feb 2009 22:26:59 -0000
@@ -106,6 +106,10 @@
     if ($op == 'view') {
       $block['orig_module'] = $block_info->module;
       $block['orig_delta'] = $block_info->orig_delta;
+      $block['module'] = 'multiblock';
+      $block['delta'] = $block_info->delta;
+      $ret = module_invoke_all('block_alter', $block);
+      $block = array_merge($block, $ret);
     }
     return $block;
   }
@@ -113,6 +117,10 @@
   return;
 }
 
+function multiblock_block_alter($block) {
+  return array('added' => 'Hello, world.');
+}
+
 /**
  * Page callback for the "Manage Block Instances page".
  */