diff --git a/actions/disfavor.php b/actions/disfavor.php
index 740f7de933..02e01d6e00 100644
--- a/actions/disfavor.php
+++ b/actions/disfavor.php
@@ -75,7 +75,7 @@ class DisfavorAction extends Action
             return;
         }
         $fave            = new Fave();
-        $fave->user_id   = $this->id;
+        $fave->user_id   = $user->id;
         $fave->notice_id = $notice->id;
         if (!$fave->find(true)) {
             $this->clientError(_('This notice is not a favorite!'));
diff --git a/actions/groups.php b/actions/groups.php
index b49d80f377..3d62843ed6 100644
--- a/actions/groups.php
+++ b/actions/groups.php
@@ -115,6 +115,7 @@ class GroupsAction extends Action
         $groups->orderBy('created DESC');
         $groups->limit($offset, $limit);
 
+        $cnt = 0;
         if ($groups->find()) {
             $gl = new GroupList($groups, null, $this);
             $cnt = $gl->show();
diff --git a/actions/twitapisearchatom.php b/actions/twitapisearchatom.php
index 708b1494d1..3678213c3a 100644
--- a/actions/twitapisearchatom.php
+++ b/actions/twitapisearchatom.php
@@ -172,6 +172,7 @@ class TwitapisearchatomAction extends TwitterapiAction
         }
 
         $cnt = 0;
+        $this->max_id = 0;
 
         if ($this->cnt > 0) {
             while ($notice->fetch()) {
diff --git a/lib/groupeditform.php b/lib/groupeditform.php
index 7e8d6eea3a..fbb39129bc 100644
--- a/lib/groupeditform.php
+++ b/lib/groupeditform.php
@@ -130,30 +130,46 @@ class GroupEditForm extends Form
 
     function formData()
     {
+        if ($this->group) {
+            $id = $this->group->id;
+            $nickname = $this->group->nickname;
+            $fullname = $this->group->fullname;
+            $homepage = $this->group->homepage;
+            $description = $this->group->description;
+            $location = $this->group->location;
+        } else {
+            $id = '';
+            $nickname = '';
+            $fullname = '';
+            $homepage = '';
+            $description = '';
+            $location = '';
+        }
+
         $this->out->elementStart('ul', 'form_data');
         $this->out->elementStart('li');
-        $this->out->hidden('groupid', $this->group->id);
+        $this->out->hidden('groupid', $id);
         $this->out->input('nickname', _('Nickname'),
-                     ($this->out->arg('nickname')) ? $this->out->arg('nickname') : $this->group->nickname,
+                     ($this->out->arg('nickname')) ? $this->out->arg('nickname') : $nickname,
                      _('1-64 lowercase letters or numbers, no punctuation or spaces'));
         $this->out->elementEnd('li');
         $this->out->elementStart('li');
         $this->out->input('fullname', _('Full name'),
-                     ($this->out->arg('fullname')) ? $this->out->arg('fullname') : $this->group->fullname);
+                     ($this->out->arg('fullname')) ? $this->out->arg('fullname') : $fullname);
         $this->out->elementEnd('li');
         $this->out->elementStart('li');
         $this->out->input('homepage', _('Homepage'),
-                     ($this->out->arg('homepage')) ? $this->out->arg('homepage') : $this->group->homepage,
+                     ($this->out->arg('homepage')) ? $this->out->arg('homepage') : $homepage,
                      _('URL of the homepage or blog of the group or topic'));
         $this->out->elementEnd('li');
         $this->out->elementStart('li');
         $this->out->textarea('description', _('Description'),
-                        ($this->out->arg('description')) ? $this->out->arg('description') : $this->group->description,
+                        ($this->out->arg('description')) ? $this->out->arg('description') : $description,
                         _('Describe the group or topic in 140 chars'));
         $this->out->elementEnd('li');
         $this->out->elementStart('li');
         $this->out->input('location', _('Location'),
-                     ($this->out->arg('location')) ? $this->out->arg('location') : $this->group->location,
+                     ($this->out->arg('location')) ? $this->out->arg('location') : $location,
                      _('Location for the group, if any, like "City, State (or Region), Country"'));
         $this->out->elementEnd('li');
         if (common_config('group', 'maxaliases') > 0) {
diff --git a/lib/jsonsearchresultslist.php b/lib/jsonsearchresultslist.php
index f786c20a80..7beea9328d 100644
--- a/lib/jsonsearchresultslist.php
+++ b/lib/jsonsearchresultslist.php
@@ -89,6 +89,7 @@ class JSONSearchResultsList
     function show()
     {
         $cnt = 0;
+        $this->max_id = 0;
 
         $time_start = microtime(true);
 
diff --git a/lib/util.php b/lib/util.php
index f9ff38c8ad..2721045819 100644
--- a/lib/util.php
+++ b/lib/util.php
@@ -114,7 +114,7 @@ function common_check_user($nickname, $password)
         return false;
     }
     $user = User::staticGet('nickname', $nickname);
-    if (is_null($user)) {
+    if (is_null($user) || $user === false) {
         return false;
     } else {
         if (0 == strcmp(common_munge_password($password, $user->id),