cancelling partially received PO line changes PO status to Cancelled

Summary:

cancelling partially received PO line changes PO status to Cancelled

Content (please ensure you mask any confidential information):

Hi team, -

1. i created a PO for a qty of 10 and received 5.
2. Then, using the "Cancel Line" action in PO lines, i cancelled the PO line, for which a change order is created with -5 qty..
3. once the change order is approved, i see that the PO status is set to Cancelled. Is this expected functionality?
4. And while trying to create invoice for the received 5 qty, PO is not available in the list of values in Create Invoice page

Feature is turned off : "Prevent Cancellation of Partially Received or Invoiced Purchase Orders"