diff --git a/db/zentao.sql b/db/zentao.sql
index 704a818e5b..8ca08a0424 100755
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -966,8 +966,8 @@ CREATE TABLE IF NOT EXISTS `zt_kanbanregion` (
   `order` mediumint(8) NOT NULL DEFAULT '0',
   `createdBy` char(30) NOT NULL,
   `createdDate` datetime NOT NULL,
-  `lastEditedBy` char(30) NOT NULL,
-  `lastEditedDate` datetime NOT NULL,
+  `lastEditedBy` char(30) NOT NULL DEFAULT '',
+  `lastEditedDate` datetime NULL,
   `deleted` enum('0', '1') NOT NULL DEFAULT '0',
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
diff --git a/lib/dao/dm.class.php b/lib/dao/dm.class.php
index 43a991b677..efeea6b44f 100644
--- a/lib/dao/dm.class.php
+++ b/lib/dao/dm.class.php
@@ -217,6 +217,20 @@ class dm extends dao
         return parent::groupBy($groupBy);
     }
 
+    /**
+     * 创建ORDER BY部分。
+     * Create the order by part.
+     *
+     * @param  string $order
+     * @access public
+     * @return static|sql the sql object.
+     */
+    public function orderBy($order)
+    {
+        $order = str_replace('"', '', $order);
+        return parent::orderBy($order);
+    }
+
     /**
      * 创建ON部分。
      * Create the on part.
diff --git a/lib/dbh/dbh.class.php b/lib/dbh/dbh.class.php
index 2084729a85..e9cf2d9b73 100644
--- a/lib/dbh/dbh.class.php
+++ b/lib/dbh/dbh.class.php
@@ -256,6 +256,7 @@ class dbh
     public function formatDmSQL($sql)
     {
         $sql       = trim($sql);
+        $sql       = str_replace(array('\r', '\n'), ' ', $sql);
         $actionPos = strpos($sql, ' ');
         $action    = strtoupper(substr($sql, 0, $actionPos));
         $setPos    = 0;
diff --git a/module/bug/control.php b/module/bug/control.php
index e6a755bd70..77e404814d 100755
--- a/module/bug/control.php
+++ b/module/bug/control.php
@@ -919,7 +919,7 @@ class bug extends control
 
         $projects = $this->loadModel('product')->getProjectPairsByProduct($productID, $bug->branch);
         $this->session->set("project", key($projects), 'project');
-        
+
         $this->executeHooks($bugID);
 
         /* Header and positon. */
diff --git a/module/project/model.php b/module/project/model.php
index bdcdcf62a4..5b42f71382 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -238,14 +238,13 @@ class projectModel extends model
             ->groupBy('t1.root')
             ->fetchAll('root');
 
-        $condition = 't2.project as project';
-        $estimates = $this->dao->select("$condition, sum(estimate) as estimate")->from(TABLE_TASK)->alias('t1')
+        $estimates = $this->dao->select("t2.project as project, sum(estimate) as estimate")->from(TABLE_TASK)->alias('t1')
             ->leftJoin(TABLE_PROJECT)->alias('t2')->on('t1.execution = t2.id')
             ->where('t1.parent')->lt(1)
             ->andWhere('t2.project')->in($projectIdList)
             ->andWhere('t1.deleted')->eq(0)
             ->andWhere('t2.deleted')->eq(0)
-            ->groupBy('project')
+            ->groupBy('t2.project')
             ->fetchAll('project');
 
         $this->app->loadClass('pager', $static = true);
diff --git a/module/repo/control.php b/module/repo/control.php
index 32ea458c9f..c6f894d54f 100644
--- a/module/repo/control.php
+++ b/module/repo/control.php
@@ -1469,7 +1469,7 @@ class repo extends control
             }
         }
 
-        $latestInDB = $this->dao->select('DISTINCT t1.*')->from(TABLE_REPOHISTORY)->alias('t1')
+        $latestInDB = $this->dao->select('t1.*')->from(TABLE_REPOHISTORY)->alias('t1')
             ->leftJoin(TABLE_REPOBRANCH)->alias('t2')->on('t1.id=t2.revision')
             ->where('t1.repo')->eq($repoID)
             ->beginIF($repo->SCM == 'Git' and $this->cookie->repoBranch)->andWhere('t2.branch')->eq($this->cookie->repoBranch)->fi()
@@ -1538,7 +1538,7 @@ class repo extends control
         $this->repo->setRepoBranch($branch);
         setcookie("syncBranch", $branch, 0, $this->config->webRoot, '', $this->config->cookieSecure, true);
 
-        $latestInDB = $this->dao->select('DISTINCT t1.*')->from(TABLE_REPOHISTORY)->alias('t1')
+        $latestInDB = $this->dao->select('t1.*')->from(TABLE_REPOHISTORY)->alias('t1')
             ->leftJoin(TABLE_REPOBRANCH)->alias('t2')->on('t1.id=t2.revision')
             ->where('t1.repo')->eq($repoID)
             ->beginIF(in_array($repo->SCM, $this->config->repo->gitTypeList) and $this->cookie->repoBranch)->andWhere('t2.branch')->eq($this->cookie->repoBranch)->fi()
diff --git a/module/repo/model.php b/module/repo/model.php
index 1495a87fd5..abfacaf628 100644
--- a/module/repo/model.php
+++ b/module/repo/model.php
@@ -780,7 +780,7 @@ class repoModel extends model
             ->beginIF($begin)->andWhere('t1.time')->ge($begin)->fi()
             ->beginIF($end)->andWhere('t1.time')->le($end)->fi()
             ->orderBy('time desc');
-        if($entry == '/' or empty($entry))$comments->page($pager, 't1.id');
+        if($entry == '/' or empty($entry)) $comments->page($pager, 't1.id');
         $comments = $comments->fetchAll('revision');
 
         foreach($comments as $repoComment)