tdf#124896 CRASH: deleting sheet

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

Change-Id: I3913e14cadc11efa1d9e7405cdbaf96fe094508a
Reviewed-on: https://gerrit.libreoffice.org/71220
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
diff --git a/sc/source/core/data/documen5.cxx b/sc/source/core/data/documen5.cxx
index 0bb9379..76598f8 100644
--- a/sc/source/core/data/documen5.cxx
+++ b/sc/source/core/data/documen5.cxx
@@ -529,7 +529,8 @@

bool ScDocument::HasData( SCCOL nCol, SCROW nRow, SCTAB nTab )
{
    if ( ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab])
    if ( ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab]
            && nCol < maTabs[nTab]->GetAllocatedColumnsCount())
        return maTabs[nTab]->HasData( nCol, nRow );
    else
        return false;
diff --git a/sc/source/core/data/document.cxx b/sc/source/core/data/document.cxx
index 134e599..d9cd441 100644
--- a/sc/source/core/data/document.cxx
+++ b/sc/source/core/data/document.cxx
@@ -3765,7 +3765,8 @@

bool ScDocument::HasStringData( SCCOL nCol, SCROW nRow, SCTAB nTab ) const
{
    if ( ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab] )
    if ( ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab]
            && nCol < maTabs[nTab]->GetAllocatedColumnsCount())
            return maTabs[nTab]->HasStringData( nCol, nRow );
    else
        return false;
@@ -3773,7 +3774,8 @@

bool ScDocument::HasValueData( SCCOL nCol, SCROW nRow, SCTAB nTab ) const
{
    if ( ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab] )
    if ( ValidTab(nTab) && nTab < static_cast<SCTAB>(maTabs.size()) && maTabs[nTab]
            && nCol < maTabs[nTab]->GetAllocatedColumnsCount())
            return maTabs[nTab]->HasValueData( nCol, nRow );
    else
        return false;