Fix w8a8_int8 model shared experts fusion load weights error (#5120)

python/sglang/srt/models/deepseek_v2.py

@@ -1480,6 +1480,16 @@ class DeepseekV2ForCausalLM(nn.Module):
         if self.n_share_experts_fusion is not None and self.n_share_experts_fusion > 0:
             weights_list = list(weights)
             weights_dict = dict(weights_list)
+            if self.quant_config.get_name() == "w8a8_int8":
+                suffix_list = [
+                    "down_proj.weight",
+                    "down_proj.weight_scale",
+                    "gate_proj.weight",
+                    "gate_proj.weight_scale",
+                    "up_proj.weight",
+                    "up_proj.weight_scale",
+                ]
+            else:
                 suffix_list = [
                     "down_proj.weight",
                     "down_proj.weight_scale_inv",