Index: template.php
===================================================================
--- template.php	(revision 10491)
+++ template.php	(working copy)
@@ -184,7 +184,7 @@
 				break;
 			default:
 				$output .= "<td $attributes>";
-				$output .= apply_filters('manage_categories_custom_column', $column_name, $category->term_id);
+				$output .= apply_filters('manage_categories_custom_column', '', $column_name, $category->term_id);
 				$output .= "</td>";
 		}
 	}
@@ -353,7 +353,7 @@
 				break;
 			default:
 				$output .= "<td $attributes>";
-				$output .= apply_filters('manage_link_categories_custom_column', $column_name, $category->term_id);
+				$output .= apply_filters('manage_link_categories_custom_column', '', $column_name, $category->term_id);
 				$output .= "</td>";
 		}
 	}
@@ -645,7 +645,7 @@
 					break;
 				default:
 					$out .= "<td $attributes>";
-					$out .= apply_filters("manage_${taxonomy}_custom_column", $column_name, $tag->term_id);
+					$out .= apply_filters("manage_${taxonomy}_custom_column", '', $column_name, $tag->term_id);
 					$out .= "</td>";
 			}
 		}
@@ -1892,7 +1892,7 @@
 				break;
 			default:
 				$r .= "<td $attributes>";
-				$r .= apply_filters('manage_users_custom_column', $column_name, $user_object->ID);
+				$r .= apply_filters('manage_users_custom_column', '', $column_name, $user_object->ID);
 				$r .= "</td>";
 		}
 	}