Index: trunk/kernel/include/tag-class.php
===================================================================
diff -u -N -r3330 -r7867
--- trunk/kernel/include/tag-class.php	(.../tag-class.php)	(revision 3330)
+++ trunk/kernel/include/tag-class.php	(.../tag-class.php)	(revision 7867)
@@ -102,7 +102,7 @@
             $a->Set("AttrType",$Type);
             $a->Set("DefValue",$default);
             $a->Set("Description",$desc);
-            $a->Set("Required",$required);
+            $a->Set("Required", (int)$required);
             $a->Create();
         }
         else
@@ -115,7 +115,7 @@
                 $a->Set("AttrType",$Type);
                 $a->Set("DefValue",$default);
                 $a->Set("Description",$desc);
-                $a->Set("Required",$required);
+                $a->Set("Required", (int)$required);
                 $a->Create();
             }
             else
@@ -125,7 +125,7 @@
                 $a->Set("AttrType",$Type);
                 $a->Set("DefValue",$default);
                 $a->Set("Description",$desc);
-                $a->Set("Required",$required);
+                $a->Set("Required", (int)$required);
                 $a->Update();
             }
         }