...and drop the unnecessary &reference from child class pkeyGet() overrides.

classes/Avatar.php

@@ -37,7 +37,7 @@ class Avatar extends Memcached_DataObject
         }
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Avatar', $kv);
     }

classes/Config.php

@@ -120,7 +120,7 @@ class Config extends Memcached_DataObject
         return $result;
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Config', $kv);
     }

classes/Fave.php

@@ -32,7 +32,7 @@ class Fave extends Memcached_DataObject
         return $fave;
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Fave', $kv);
     }

classes/File_to_post.php

@@ -62,7 +62,7 @@ class File_to_post extends Memcached_DataObject
         }
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('File_to_post', $kv);
     }

classes/Group_block.php

@@ -40,7 +40,7 @@ class Group_block extends Memcached_DataObject
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Group_block', $kv);
     }

classes/Group_inbox.php

@@ -20,7 +20,7 @@ class Group_inbox extends Memcached_DataObject
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Group_inbox', $kv);
     }

classes/Group_member.php

@@ -21,7 +21,7 @@ class Group_member extends Memcached_DataObject
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Group_member', $kv);
     }

classes/Notice_inbox.php

@@ -101,7 +101,7 @@ class Notice_inbox extends Memcached_DataObject
         return $ids;
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Notice_inbox', $kv);
     }

classes/Notice_tag.php

@@ -96,7 +96,7 @@ class Notice_tag extends Memcached_DataObject
         }
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Notice_tag', $kv);
     }

classes/Profile_role.php

@@ -43,7 +43,7 @@ class Profile_role extends Memcached_DataObject
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Profile_role', $kv);
     }

classes/Queue_item.php

@@ -55,7 +55,7 @@ class Queue_item extends Memcached_DataObject
         return null;
     }
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Queue_item', $kv);
     }

classes/Subscription.php

@@ -46,7 +46,7 @@ class Subscription extends Memcached_DataObject
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
     
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('Subscription', $kv);
     }

plugins/OpenID/User_openid_trustroot.php

@@ -22,7 +22,7 @@ class User_openid_trustroot extends Memcached_DataObject
     /* the code above is auto generated do not remove the tag below */
     ###END_AUTOCODE
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('User_openid_trustroot', $kv);
     }

plugins/UserFlag/User_flag_profile.php

@@ -97,7 +97,7 @@ class User_flag_profile extends Memcached_DataObject
      * @return User_flag_profile found object or null
      */
 
-    function &pkeyGet($kv)
+    function pkeyGet($kv)
     {
         return Memcached_DataObject::pkeyGet('User_flag_profile', $kv);
     }