diff --git a/muk_security/__manifest__.py b/muk_security/__manifest__.py
index fb9c924..a9772ef 100644
--- a/muk_security/__manifest__.py
+++ b/muk_security/__manifest__.py
@@ -20,7 +20,7 @@
 {
     "name": "MuK Security",
     "summary": """Security Features""",
-    "version": "11.0.1.1.4",
+    "version": "11.0.1.1.5",
     "category": "Extra Tools",
     "license": "AGPL-3",
     "website": "http://www.mukit.at",
diff --git a/muk_security/models/res_users.py b/muk_security/models/res_users.py
index 8f8abb1..22a21b4 100644
--- a/muk_security/models/res_users.py
+++ b/muk_security/models/res_users.py
@@ -1,67 +1,57 @@
-###################################################################################
-# 
-#    Copyright (C) 2017 MuK IT GmbH
-#
-#    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU Affero General Public License as
-#    published by the Free Software Foundation, either version 3 of the
-#    License, or (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU Affero General Public License for more details.
-#
-#    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-###################################################################################
-
-import logging
-
-from odoo import api, fields, models
-from odoo import tools, _
-from odoo.exceptions import ValidationError
-
-from odoo.addons.base.res import res_users
-
-from odoo.addons.muk_security.tools import helper
-
-_logger = logging.getLogger(__name__)
-
-class AccessUser(models.Model):
-    
-    _inherit = 'res.users'
-
-    #----------------------------------------------------------
-    # Database
-    #----------------------------------------------------------
-    
-    security_groups = fields.Many2many(
-        comodel_name='muk_security.groups',
-        relation='muk_security_groups_explicit_users_rel',
-        column1='uid',
-        column2='gid',
-        string='Groups',
-        readonly=True)
-
-    #----------------------------------------------------------
-    # Functions
-    #----------------------------------------------------------
-   
-    def browse(self, *args, **kwargs):
-        if len(args) and isinstance(args[0], helper.NoSecurityUid):
-            args = list(args)
-            args[0] = super(helper.NoSecurityUid, args[0]).__int__()
-            args = tuple(args)
-        return super(AccessUser, self).browse(*args, **kwargs)
-    
-    
-    @classmethod
-    def _browse(cls, ids, *args, **kwargs):
-        def convert_security_uid(id):
-            if isinstance(id, helper.NoSecurityUid):
-                return super(helper.NoSecurityUid, id).__int__()
-            return id
-        access_ids = [convert_security_uid(id) for id in ids]
-        return super(AccessUser, cls)._browse(access_ids, *args, **kwargs)
+###################################################################################
+# 
+#    Copyright (C) 2017 MuK IT GmbH
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+###################################################################################
+
+import logging
+
+from odoo import api, fields, models
+from odoo import tools, _
+from odoo.exceptions import ValidationError
+
+from odoo.addons.base.res import res_users
+
+from odoo.addons.muk_security.tools import helper
+
+_logger = logging.getLogger(__name__)
+
+class AccessUser(models.Model):
+    
+    _inherit = 'res.users'
+
+    #----------------------------------------------------------
+    # Database
+    #----------------------------------------------------------
+    
+    security_groups = fields.Many2many(
+        comodel_name='muk_security.groups',
+        relation='muk_security_groups_explicit_users_rel',
+        column1='uid',
+        column2='gid',
+        string='Groups',
+        readonly=True)
+
+    #----------------------------------------------------------
+    # Functions
+    #----------------------------------------------------------
+    
+    @classmethod
+    def _browse(cls, ids, env, prefetch=None, add_prefetch=True):
+        return super(AccessUser, cls)._browse([
+            id if not isinstance(id, helper.NoSecurityUid)
+            else super(helper.NoSecurityUid, id).__int__() 
+            for id in ids], env, prefetch=prefetch)
\ No newline at end of file
diff --git a/muk_security/tools/helper.py b/muk_security/tools/helper.py
index 2c540a3..1a7fe2f 100644
--- a/muk_security/tools/helper.py
+++ b/muk_security/tools/helper.py
@@ -29,5 +29,8 @@ class NoSecurityUid(int):
             return False
         return super(NoSecurityUid, self).__int__() == other
 
+    def __iter__(self):
+        yield super(NoSecurityUid, self).__int__()
+        
     def __hash__(self):
-        return super(NoSecurityUid, self).__hash__()
+        return super(NoSecurityUid, self).__hash__()
\ No newline at end of file