[FIX] survey: force title on duplicate only if not already specified

No need to force a new title on duplicate if something is already given.

Task ID-2265556
PR odoo/odoo#52391

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>

addons/survey/models/survey_survey.py

@@ -314,8 +314,8 @@ class Survey(models.Model):
         return result
 
     def copy_data(self, default=None):
-        title = _("%s (copy)") % (self.title)
-        default = dict(default or {}, title=title)
+        new_defaults = {'title': _("%s (copy)") % (self.title)}
+        default = dict(new_defaults, **(default or {}))
         return super(Survey, self).copy_data(default)
 
     def toggle_active(self):