[fix] conditonnal questions when copy survey

models/survey_question.py

@@ -21,3 +21,26 @@ class SurveyQuestionConditional(models.Model):
     def _onchange_constr_mandatory(self):
         if self.constr_mandatory:
             self.conditional = False
+
+
+class Survey(models.Model):
+    _inherit = 'survey.survey'
+
+    def copy(self, default=None):
+        res = super(Survey, self).copy(default)
+        for page in res.page_ids:
+            for question in page.question_ids:
+                if question.conditional:
+                    new_conditional_question_id = question.search([
+                        ['page_id', '=', question.page_id.id],
+                        ['question', '=', question.conditional_question_id.question]
+                    ])
+                    new_conditional_option_id = res.env['survey.label'].search([
+                        ['question_id', '=', new_conditional_question_id.id],
+                        ['value', '=', question.conditional_option_id.value]
+                    ])
+                    question.write({
+                        'conditional_question_id': new_conditional_question_id.id,
+                        'conditional_option_id': new_conditional_option_id.id
+                    })
+        return res