From 0059cd28cd52b4b3b39801d1d3efb8953f162275 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Mon, 10 Mar 2025 11:06:00 +0100
Subject: [PATCH] Do not use instanceof on value of Date and DateTime of Dict
 field

Instead we must use the attributes isDate and isDateTime.

Closes #13845
---
 sao/src/view/form.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sao/src/view/form.js b/sao/src/view/form.js
index 9f10cf5b5b..b5c01b91cb 100644
--- a/sao/src/view/form.js
+++ b/sao/src/view/form.js
@@ -5775,8 +5775,7 @@ function eval_pyson(value){
             return this._parse(this.format, this.input.val());
         },
         set_value: function(value) {
-            if ((value instanceof Sao.DateTime) ||
-                (value instanceof Sao.Date)) {
+            if (value && (value.isDate || value.isDateTime)) {
                 value = this._format(this.format, value);
             } else {
                 value = '';