Reserve Item Qty for one wo but shows no reservation qty for same item while creating other wo

Summary:

We have created One Work Order with Material Qty as 8 as we have only 10 on-hand quantities available at sub inventory we performed the "Release and Pick the Materials" task from the Manage Work Orders Page now the system allows us to reserve the Qty for the same item and it shows as Reserved 8 and On-hand available qty as 10 (that is Organization om-hand qty). Now we have released another work order with the same item for consumption it shows the available on-hand qty as 10 and shows no reserved qty so if we add qty as 5