fix default selection required

lib/process-services-cloud/src/lib/form/components/widgets/dropdown/dropdown-cloud.widget.spec.ts

@@ -983,6 +983,20 @@ describe('DropdownCloudWidgetComponent', () => {
             expect(widget.field.options.length).toEqual(0);
         };
 
+        it('should set dropdownControl value without emitting events', () => {
+            widget.field = {
+                value: 'testValue',
+                options: [],
+                isVisible: true
+            } as any; // Mock field
+            spyOn(widget.dropdownControl, 'setValue').and.callThrough();
+
+            widget['setFormControlValue']();
+
+            expect(widget.dropdownControl.setValue).toHaveBeenCalledWith({ id: 'testValue', name: '' }, { emitEvent: false });
+            expect(widget.dropdownControl.value).toEqual({ id: 'testValue', name: '' });
+        });
+
         it('should display options persisted from process variable', async () => {
             widget.field = getVariableDropdownWidget(
                 'variables.json-variable',

lib/process-services-cloud/src/lib/form/components/widgets/dropdown/dropdown-cloud.widget.ts

@@ -195,7 +195,7 @@ export class DropdownCloudWidgetComponent extends WidgetComponent implements OnI
     }
 
     private setFormControlValue(): void {
-        this.dropdownControl.setValue(this.field?.value, { emitEvent: false });
+        this.dropdownControl.setValue({ id: this.field?.value, name: '' }, { emitEvent: false });
     }
 
     private updateFormControlState(): void {

lib/process-services-cloud/src/lib/form/components/widgets/dropdown/validator.spec.ts

@@ -0,0 +1,72 @@
+/*!
+ * @license
+ * Copyright © 2005-2025 Hyland Software, Inc. and its affiliates. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { FormFieldModel } from '@alfresco/adf-core';
+import { FormControl } from '@angular/forms';
+import { defaultValueValidator } from './validators';
+import { DEFAULT_OPTION } from './dropdown-cloud.widget';
+
+describe('defaultValueValidator', () => {
+    let mockField: FormFieldModel;
+
+    beforeEach(() => {
+        mockField = new FormFieldModel(null, {
+            options: [
+                { id: DEFAULT_OPTION.id, name: DEFAULT_OPTION.name },
+                { id: 'opt_1', name: 'Option 1' },
+                { id: 'opt_2', name: 'Option 2' }
+            ]
+        });
+    });
+
+    it('should return null when a valid option is selected', () => {
+        const validator = defaultValueValidator(mockField);
+        const control = new FormControl('opt_1');
+
+        const result = validator(control);
+
+        expect(result).toBeNull();
+    });
+
+    it('should return a required error when no valid option is selected', () => {
+        const validator = defaultValueValidator(mockField);
+        const control = new FormControl(null);
+
+        const result = validator(control);
+
+        expect(result).toEqual({ required: true });
+    });
+
+    it('should return a required error when the default option is selected', () => {
+        const validator = defaultValueValidator(mockField);
+        const control = new FormControl(DEFAULT_OPTION.id);
+
+        const result = validator(control);
+
+        expect(result).toEqual({ required: true });
+    });
+
+    it('should return null when the field has no options', () => {
+        mockField.options = [];
+        const validator = defaultValueValidator(mockField);
+        const control = new FormControl('opt_1');
+
+        const result = validator(control);
+
+        expect(result).toBeNull();
+    });
+});