tdf#124818 CRASH selecting all and switching spreadsheet

regression from
    commit 7282014e362a1529a36c88eb308df8ed359c2cfa
    Date:   Fri Feb 1 15:15:16 2019 +0100
    tdf#50916 Makes numbers of columns dynamic.

Change-Id: I033bcae2bdc97c3aae24557c5949c7759041b3bc
Reviewed-on: https://gerrit.libreoffice.org/70925
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/sc/source/core/data/table2.cxx b/sc/source/core/data/table2.cxx
index 218ca0c..4c303d9 100644
--- a/sc/source/core/data/table2.cxx
+++ b/sc/source/core/data/table2.cxx
@@ -1692,7 +1692,8 @@
{
    SCROW nStartRow = rRange.aStart.Row();
    SCROW nEndRow = rRange.aEnd.Row();
    for (SCCOL nCol = rRange.aStart.Col(); nCol <= rRange.aEnd.Col(); ++nCol)
    SCCOL nEndCol = ClampToAllocatedColumns(rRange.aEnd.Col());
    for (SCCOL nCol = rRange.aStart.Col(); nCol <= nEndCol; ++nCol)
    {
        bool bContainsNote = !aCol[nCol].IsNotesEmptyBlock(nStartRow, nEndRow);
        if(bContainsNote)