From 410f50696565e70ae1c74c76f866f533610486f4 Mon Sep 17 00:00:00 2001
From: Lidongliang <lidongliang@baihai.ai>
Date: Fri, 14 Nov 2025 22:49:01 +0800
Subject: [PATCH] fix: add serde default for tie_word_embeddings in
 Qwen3VLTextConfig

- Add #[serde(default)] attribute to tie_word_embeddings field
- Fixes deserialization error when field is missing from config.json
- Resolves: missing field 'tie_word_embeddings' error for Qwen3-VL-8B model
---
 src/models/qwen3vl/config.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/models/qwen3vl/config.rs b/src/models/qwen3vl/config.rs
index 3124181..6650352 100644
--- a/src/models/qwen3vl/config.rs
+++ b/src/models/qwen3vl/config.rs
@@ -42,6 +42,7 @@ pub struct Qwen3VLTextConfig {
     pub rms_norm_eps: f64,
     pub rope_scaling: RopeScaling,
     pub rope_theta: f32,
+    #[serde(default)]
     pub tie_word_embeddings: bool,
     pub use_cache: bool,
     pub vocab_size: usize,