[Bugfix] ComfyUI image-to-image DALL-E endpoint cases #2886 (#2980)

Signed-off-by: david6666666 <530634352@qq.com>

tests/entrypoints/openai_api/test_image_server.py

@@ -1061,6 +1061,27 @@ def test_image_edit_rejects_too_many_images_for_qwen_image_edit_2511_before_load
     assert engine.captured_prompt is None
 
 
+def test_image_edit_ignores_mock_like_multimodal_limit(async_omni_test_client):
+    engine = async_omni_test_client.app.state.engine_client
+    engine.get_diffusion_od_config = lambda: SimpleNamespace(
+        supports_multimodal_inputs=SimpleNamespace(),
+        max_multimodal_image_inputs=SimpleNamespace(),
+    )
+
+    response = async_omni_test_client.post(
+        "/v1/images/edits",
+        files=[("image", make_test_image_bytes((16, 16)))],
+        data={"prompt": "hello world."},
+    )
+
+    assert response.status_code == 200
+    captured_prompt = engine.captured_prompt
+    assert captured_prompt is not None
+    processed_images = captured_prompt["multi_modal_data"]["image"]
+    assert len(processed_images) == 1
+    assert processed_images[0].size == (16, 16)
+
+
 def test_image_edit_parameter_pass(async_omni_test_client):
     img_bytes_1 = make_test_image_bytes((16, 16))