From 6853fd0d34a5d74f5be02f676b5e759f8fe98a2d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adri=C3=A0=20Tarroja=20Caubet?= <atarroja@kopen.es>
Date: Tue, 29 Sep 2026 15:31:30 +0200
Subject: [PATCH] Set Selection value synchronously when available

Restore the displayed value before Window.Form reads the widgets. Otherwise
rebuilding the selection may temporarily select its first option.

Closes #15117
(grafted from 0fdec92fe79648f3044c5bc10c4dd729a74028fd)

--HG--
branch : 8.0
---
 sao/src/view/form.js | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/sao/src/view/form.js b/sao/src/view/form.js
index ea2b2bdd26..1d4bb27cbf 100644
--- a/sao/src/view/form.js
+++ b/sao/src/view/form.js
@@ -2319,34 +2319,33 @@ function eval_pyson(value){
                     return;
                 }
                 var value = field.get(record);
-                var prm, found = false;
+                var found = false;
                 for (const option of selection) {
                     if (option[0] === value) {
                         found = true;
                         break;
                     }
                 }
-                if (!found) {
-                    prm = Sao.common.selection_mixin.get_inactive_selection
-                        .call(this, value);
-                    prm = prm.then(inactive => {
-                        this.select.append(jQuery('<option/>', {
-                            value: JSON.stringify(inactive[0]),
-                            text: inactive[1],
-                            disabled: true
-                        }));
-                    });
-                } else {
-                    prm = jQuery.when();
-                }
-                return prm.then(() => {
+                let set_value = () => {
                     this.select.val(JSON.stringify(value));
                     var title = help[value] || null;
                     if (this.attributes.help && title) {
                         title = this.attributes.help + '\n' + title;
                     }
                     this.select.attr('title', title);
-                });
+                };
+                if (!found) {
+                    return Sao.common.selection_mixin.get_inactive_selection
+                        .call(this, value)
+                        .then(inactive => {
+                            this.select.append(jQuery('<option/>', {
+                                value: JSON.stringify(inactive[0]),
+                                text: inactive[1],
+                                disabled: true
+                            }));
+                        }).then(set_value);
+                }
+                set_value();
             });
         },
         display: function() {