Check nNextPageBreak for ScRowBreakIterator::NOT_FOUND, tdf#64703 follow-up

Change-Id: Ifa0fd1b53da70018d8d14abd4f8ba347908d5ea9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/119732
Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Jenkins
diff --git a/sc/source/ui/view/printfun.cxx b/sc/source/ui/view/printfun.cxx
index 0fc79a7..f8e7c30 100644
--- a/sc/source/ui/view/printfun.cxx
+++ b/sc/source/ui/view/printfun.cxx
@@ -3199,7 +3199,8 @@ void PrintPageRanges::calculate(ScDocument& rDoc,
        else
        {
            // Skip all hidden rows until next pagebreak.
            nRow = std::min(nLastRow, nNextPageBreak - 1);
            nRow = ((nNextPageBreak == ScRowBreakIterator::NOT_FOUND) ? nLastRow :
                    std::min(nLastRow, nNextPageBreak - 1));
        }
    }