Repository: huggingface/transformers
Pull request: Fix: reassign in qwen3 moe model

Fix: reassign in qwen3 moe model

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Fixes # (issue)

There is reassignment in qwen3 of `self.self_attn` in `Qwen3MoeDecoderLayer`, and the `self.mlp` could be initialized as None.

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Changed files:
filename: src/transformers/models/qwen3_moe/modeling_qwen3_moe.py
patch: @@ -322,9 +322,6 @@ def __init__(self, config: Qwen3MoeConfig, layer_idx: int):
         super().__init__()
         self.hidden_size = config.hidden_size
 
-        self.self_attn = Qwen3MoeAttention(config, layer_idx)
-        self.mlp = Qwen3MoeMLP(config)
-
         self.self_attn = Qwen3MoeAttention(config, layer_idx)
 
         if (layer_idx not in config.mlp_only_layers) and (

filename: src/transformers/models/qwen3_moe/modular_qwen3_moe.py
patch: @@ -132,9 +132,6 @@ def __init__(self, config: Qwen3MoeConfig, layer_idx: int):
         nn.Module().__init__()
         self.hidden_size = config.hidden_size
 
-        self.self_attn = Qwen3MoeAttention(config, layer_idx)
-        self.mlp = Qwen3MoeMLP(config)
-
         self.self_attn = Qwen3MoeAttention(config, layer_idx)
 
         if (layer_idx not in config.mlp_only_layers) and (