Keep record added/modified after cancel from popup window

We need to keep the record modified to ensure that it is added to the xxx2Many
on save.

issue9298
review296601002

src/window.js

@@ -455,6 +455,7 @@
                     !readonly &&
                     this.screen.current_record) {
                 result = false;
+                var added = this.screen.current_record._changed.id;
                 if ((this.screen.current_record.id < 0) || this.save_current) {
                     cancel_prm = this.screen.cancel_current(
                         this._initial_value);
@@ -462,6 +463,9 @@
                     this.screen.current_record.cancel();
                     cancel_prm = this.screen.current_record.reload();
                 }
+                if (added) {
+                    this.screen.current_record._changed.id = added;
+                }
             } else {
                 result = response_id != 'RESPONSE_CANCEL';
             }