* Fix bug#48334.

db/update20.0.beta2.sql

@@ -21,3 +21,5 @@ UPDATE `zt_chart` SET `sql` = 'SELECT t1.id, t1.NAME AS project, IFNULL( t2.NAME
 UPDATE `zt_grouppriv` SET `method` = 'recordWorkhour' WHERE `module` = 'task' AND `method` = 'recordEstimate';
 UPDATE `zt_grouppriv` SET `method` = 'editEffort'     WHERE `module` = 'task' AND `method` = 'editEstimate';
 UPDATE `zt_grouppriv` SET `method` = 'deleteWorkhour' WHERE `module` = 'task' AND `method` = 'deleteEstimate';
+
+ALTER TABLE `zt_demandreview` CHANGE `reviewDate` `reviewDate` datetime NULL;

db/updateipdinstall.sql

@@ -72,7 +72,7 @@ CREATE TABLE `zt_demandreview` (
   `version` smallint(6) NOT NULL DEFAULT '0',
   `reviewer` varchar(30) NOT NULL DEFAULT '',
   `result` varchar(30) NOT NULL DEFAULT '',
-  `reviewDate` datetime NOT NULL
+  `reviewDate` datetime NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 CREATE UNIQUE INDEX `demand` ON `zt_demandreview`(`demand`,`version`,`reviewer`);
 

db/zentao.sql

@@ -15817,7 +15817,7 @@ CREATE TABLE `zt_demandreview` (
   `version` smallint(6) NOT NULL DEFAULT '0',
   `reviewer` varchar(30) NOT NULL DEFAULT '',
   `result` varchar(30) NOT NULL DEFAULT '',
-  `reviewDate` datetime NOT NULL
+  `reviewDate` datetime NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 CREATE UNIQUE INDEX `demand` ON `zt_demandreview`(`demand`,`version`,`reviewer`);