test: add failing test for combo options lost on serialize/configure

widget.options.values is not included in serialization, so combo
widgets lose their option list after a serialize/configure round-trip
(e.g. copy-paste).

src/lib/litegraph/src/LGraphNode.comboClone.test.ts

@@ -0,0 +1,55 @@
+import { createTestingPinia } from '@pinia/testing'
+import { setActivePinia } from 'pinia'
+import { beforeEach, describe, expect, it } from 'vitest'
+
+import { LGraph, LGraphNode } from '@/lib/litegraph/src/litegraph'
+
+beforeEach(() => {
+  setActivePinia(createTestingPinia({ stubActions: false }))
+})
+
+describe('Widget options.values serialization', () => {
+  it('preserves combo options.values through serialize/configure round-trip', () => {
+    const graph = new LGraph()
+
+    // Create node with combo + option widgets manually
+    const node = new LGraphNode('TestCombo')
+    node.serialize_widgets = true
+    node.addWidget('combo', 'value', 'alpha', () => {}, {
+      values: ['alpha', 'beta', 'gamma']
+    })
+    node.addWidget('string', 'option1', 'alpha', () => {})
+    node.addWidget('string', 'option2', 'beta', () => {})
+    node.addWidget('string', 'option3', 'gamma', () => {})
+    graph.add(node)
+
+    // Serialize
+    const serialized = node.serialize()
+
+    // Create fresh node and configure
+    const restored = new LGraphNode('TestCombo')
+    restored.serialize_widgets = true
+    const restoredCombo = restored.addWidget('combo', 'value', '', () => {}, {
+      values: [] as string[]
+    })
+    restored.addWidget('string', 'option1', '', () => {})
+    restored.addWidget('string', 'option2', '', () => {})
+    restored.addWidget('string', 'option3', '', () => {})
+    graph.add(restored)
+
+    restored.configure(serialized)
+
+    // Widget values should be restored
+    expect(restored.widgets![0].value).toBe('alpha')
+    expect(restored.widgets![1].value).toBe('alpha')
+    expect(restored.widgets![2].value).toBe('beta')
+    expect(restored.widgets![3].value).toBe('gamma')
+
+    // BUG: combo options.values should also be restored
+    // but configure only restores widget.value, not widget.options
+    const restoredValues = restoredCombo.options.values as string[]
+    expect(restoredValues).toContain('alpha')
+    expect(restoredValues).toContain('beta')
+    expect(restoredValues).toContain('gamma')
+  })
+})