MailHost manage form no longer interprets the value None as a string in user and password fields.

doc/CHANGES.rst

@@ -64,6 +64,9 @@ Bugs Fixed
 
 - MailHost no longer generates garbage when given unicode input.
 
+- MailHost manage form no longer interprets the value None as a string
+  in user and password fields.
+
 - Made C extensions work for 64-bit Python 2.5.x / 2.6.x.
 
 - Unfutzed test failures due to use of naive timezones with ``datetime``

src/Products/MailHost/dtml/manageMailHost.dtml

@@ -56,7 +56,7 @@
     </td>
     <td align="left" valign="top">
     <input type="text" name="smtp_uid" size="15"
-     value="&dtml-smtp_uid;"/>
+     value="&dtml.null-smtp_uid;"/>
     </td>
     <td>
     <span class="form-help">(optional for SMTP AUTH)</span>
@@ -70,7 +70,7 @@
     </td>
     <td align="left" valign="top">
     <input type="password" name="smtp_pwd" size="15"
-     value="&dtml-smtp_pwd;"/>
+     value="&dtml.null-smtp_pwd;"/>
     </td>
     <td>
     <span class="form-help">(optional for SMTP AUTH)</span>