This is not a duplicate of bug 1175599.
Bug 1175599 said PO line is not invoiceable when related invoice is draft.
This bug says that, even if you delete the related invoice, PO line is not invoiceable anymore
This is not a duplicate of bug 1175599.
Bug 1175599 said PO line is not invoiceable when related invoice is draft.
This bug says that, even if you delete the related invoice, PO line is not invoiceable anymore