Does unconstrained Supply Plan ignores the Inventory reservations ?

Summary:

When we generate planned order in Unconstrained Supply Plan and release the plan, supply orders are created for the planned order based on the sourcing rule.

After that we perform the Manual reservation of these supply orders so that we can establish a linkage between the actual demand and the leaf level released Planned order.

Once the reservation is completed , collection is run and plan is refreshed so that newly created Supply orders are shown in the Supplies and demand Table.

But when the Supply pegging is seen Supply orders are tagged against different Demand and not the actual demand against which reservation is done.