[FIX] base: fix user list empty if there is an UserError or ValidationError on change password form

closes odoo/odoo#121868

Signed-off-by: Vincent Schippefilt (vsc) <vsc@odoo.com>

odoo/addons/base/views/res_users_views.xml

@@ -23,7 +23,7 @@
                 <!-- the user list is editable, but one cannot add or delete rows -->
                 <tree string="Users" editable="bottom" create="false" delete="false">
                     <field name="user_id" invisible="1"/>
-                    <field name="user_login"/>
+                    <field name="user_login"  force_save="1"/>
                     <field name="new_passwd" required="True" password="True"/>
                 </tree>
             </field>