diff --git a/shopfloor_reception/services/reception.py b/shopfloor_reception/services/reception.py
index b70f9b3b64f..7b13d315577 100644
--- a/shopfloor_reception/services/reception.py
+++ b/shopfloor_reception/services/reception.py
@@ -1305,7 +1305,6 @@ def _auto_post_line(self, selected_line):
         new_move = move.create(split_move_vals)
         new_move.move_line_ids = selected_line
         new_move._action_confirm(merge=False)
-        new_move._recompute_state()
         new_move._action_assign()
         # Set back the quantity to do on one of the lines
         line = fields.first(
@@ -1318,7 +1317,8 @@ def _auto_post_line(self, selected_line):
                 move.product_uom_qty, line[0].product_uom_id
             )
             line.product_uom_qty = move_quantity
-        move._recompute_state()
+        else:
+            move._action_assign()
         new_move.extract_and_action_done()
 
     def set_destination(
diff --git a/shopfloor_reception/tests/test_set_destination.py b/shopfloor_reception/tests/test_set_destination.py
index 802f6d4b02e..e0917a16232 100644
--- a/shopfloor_reception/tests/test_set_destination.py
+++ b/shopfloor_reception/tests/test_set_destination.py
@@ -199,3 +199,42 @@ def test_auto_posting_concurent_work(self):
         self.assertEqual(picking.state, "assigned")
         # So the quantity left to do on the current move has decreased
         self.assertEqual(move.product_uom_qty, 9)
+
+    def test_auto_posting_partial_new_pack(self):
+        self.menu.sudo().auto_post_line = True
+        picking = self._create_picking()
+        selected_move_line = picking.move_line_ids.filtered(
+            lambda l: l.product_id == self.product_a
+        )
+        package_name = "FooBar"
+        self.service.dispatch(
+            "set_quantity",
+            params={
+                "barcode": package_name,
+                "confirmation": "",
+                "picking_id": picking.id,
+                "quantity": 8,
+                "selected_line_id": selected_move_line.id,
+            },
+        )
+        self.service.dispatch(
+            "set_quantity",
+            params={
+                "barcode": package_name,
+                "confirmation": package_name,
+                "picking_id": picking.id,
+                "quantity": 8,
+                "selected_line_id": selected_move_line.id,
+            },
+        )
+        self.service.dispatch(
+            "set_destination",
+            params={
+                "confirmation": True,
+                "location_name": self.dispatch_location.name,
+                "picking_id": picking.id,
+                "selected_line_id": selected_move_line.id,
+            },
+        )
+        move = picking.move_lines.filtered(lambda m: m.product_id == self.product_a)
+        self.assertEqual(move.state, "assigned")