Bug 397616: Modifying Users is mentioning <productname>, but not clear when this…

docs/xml/administration.xml

@@ -575,11 +575,18 @@
           </listitem>
 
           <listitem>
-            <para>
-            <emphasis>&lt;productname&gt;</emphasis>: 
-            This allows an administrator to specify the products in which 
-            a user can see bugs. The user must still have the 
-            "editbugs" privilege to edit bugs in these products.</para>
+            <para> 
+            <emphasis>&lt;productname&gt;</emphasis>:
+            This allows an administrator to specify the products 
+            in which a user can see bugs. If you turn on the 
+            <quote>makeproductgroups</quote> parameter in
+            the Group Security Panel in the Parameters page, 
+            then Bugzilla creates one group per product (at the time you create 
+            the product), and this group has exactly the same name as the 
+            product itself. Note that for products that already exist when
+            the parameter is turned on, the corresponding group will not be
+            created. The user must still have the <quote>editbugs</quote> 
+            privilege to edit bugs in these products.</para>
           </listitem>
         </itemizedlist>
       </section>