diff --git a/apps/mtm/models.py b/apps/mtm/models.py
index d68d90e0..c81b87ed 100644
--- a/apps/mtm/models.py
+++ b/apps/mtm/models.py
@@ -119,6 +119,10 @@ class Material(CommonAModel):
     def __str__(self):
         return f'{self.name}|{self.specification if self.specification else ""}|{self.model if self.model else ""}|{self.process.name if self.process else ""}'
 
+    @property
+    def  fname(self):
+        return f'{self.name}|{self.specification if self.specification else ""}|{self.model if self.model else ""}|{self.process.name if self.process else ""}'
+
 
 class Shift(CommonBModel):
     """TN:班次
diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 107d0909..4e2dd35e 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -1182,6 +1182,7 @@ class HandoverSerializer(CustomModelSerializer):
     material_ = MaterialSimpleSerializer(source='material', read_only=True)
     material_name = serializers.StringRelatedField(
         source='material', read_only=True)
+    material_changed_fname = serializers.CharField(source='material_changed.fname', read_only=True)
     wm_notok_sign = serializers.CharField(source='wm.notok_sign', read_only=True)
     handoverb = HandoverbSerializer(many=True, required=False)
     ticket_ = TicketSimpleSerializer(source='ticket', read_only=True)
@@ -1196,8 +1197,9 @@ class HandoverSerializer(CustomModelSerializer):
             attrs["mtype"] = Handover.H_MERGE
             if "material_changed" not in attrs:
                 raise ParseError("必须指定改版后的物料")
-            
-        if attrs["mtype"] == Handover.H_MERGE:
+        
+        mtype = attrs["mtype"]
+        if mtype == Handover.H_MERGE:
             new_state = None
             new_wm:WMaterial = attrs.get("new_wm", None)
             if new_wm:
diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index fe600205..91222c14 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -524,7 +524,7 @@ class HandoverViewSet(CustomModelViewSet):
     queryset = Handover.objects.all()
     list_serializer_class = HandoverListSerializer
     serializer_class = HandoverSerializer
-    select_related_fields = ["send_user", "send_mgroup", "send_dept", "recive_user", "recive_mgroup", "recive_dept", "wm"]
+    select_related_fields = ["send_user", "send_mgroup", "send_dept", "recive_user", "recive_mgroup", "recive_dept", "wm", "material_changed"]
     filterset_class = HandoverFilter
     search_fields = ["id", "material__name", "material__number", "material__specification", "batch", "material__model", "b_handover__batch", "new_batch", "wm__batch"]
     prefetch_related_fields = [Prefetch("b_handover", queryset=Handoverb.objects.select_related("wm__defect"))]