List of purchase invoices are showing again and again in Stock Entry Doctype

I usually do stock entry process in stock entry doctype by getting items from purchase invoice. I get list of items of purchase invoice, then I select which purchase invoice’s items to get enter in my stock entry list. But here the issue is: if I use one purchase invoice that must not be appear in the list which is getting from get items from button. But, that is appearing again which makes confusion to me.
Let me know the solution