* Fix bug#34447.

db/update18.3.sql

@@ -464,6 +464,7 @@ CHANGE `lines` `lines` varchar(10) NOT NULL DEFAULT '',
 CHANGE `v1` `v1` varchar(40) NOT NULL DEFAULT '',
 CHANGE `v2` `v2` varchar(40) NOT NULL DEFAULT '',
 CHANGE `identify` `identify` mediumint unsigned NOT NULL DEFAULT '0',
+CHANGE `deadline` `deadline` date NULL,
 CHANGE `activatedCount` `activatedCount` smallint NOT NULL DEFAULT '0',
 CHANGE `activatedDate` `activatedDate` datetime NULL,
 CHANGE `assignedDate` `assignedDate` datetime NULL,

db/zentao.sql

@@ -284,7 +284,7 @@ CREATE TABLE IF NOT EXISTS `zt_bug` (
   `openedBuild` varchar(255) NOT NULL,
   `assignedTo` varchar(30) NOT NULL DEFAULT '',
   `assignedDate` datetime NULL,
-  `deadline` date NOT NULL,
+  `deadline` date NULL,
   `resolvedBy` varchar(30) NOT NULL DEFAULT '',
   `resolution` varchar(30) NOT NULL DEFAULT '',
   `resolvedBuild` varchar(30) NOT NULL DEFAULT '',