quick update

src/main/java/com/ffii/fpsms/modules/pickOrder/service/PickOrderService.kt

@@ -411,7 +411,7 @@ open class PickOrderService(
         val inventoryLotLines = inventoryLotLineRepository.findAllByIdIn(saveSuggestedPickLots.mapNotNull { it.suggestedLotLine?.id })
 
         inventoryLotLines.forEach {  line ->
-            line.holdQty = line.holdQty?.plus(saveSuggestedPickLots.find { it.suggestedLotLine == line }?.qty ?: zero)
+            line.holdQty = (line.holdQty ?: zero)?.plus(saveSuggestedPickLots.find { it.suggestedLotLine == line }?.qty ?: zero)
         }
 
         inventoryLotLineRepository.saveAll(inventoryLotLines)