[FIX] Fix the bug when an old page is stayed after navigation by page numbers.

d857a48a · 2eg01nd · 8b732849 · d857a48a
--- a/plugin/src/pdfview.cpp
+++ b/plugin/src/pdfview.cpp
@@ -1092,6 +1092,7 @@ void PdfView::_calculateVisible()
            auto checkerIt = copiesCheckerItems.find(pagesIt.key());
            if (checkerIt != copiesCheckerItems.end())
                copiesCheckerItems.erase(checkerIt);
+            pagesIt.value()->setVisible(false);
        }
    }
    m_pages = copiesPages;