ofz#14093 bunch of new ofz detected crashes related to tdf#50916

since...

commit 7282014e
Date:   Fri Feb 1 15:15:16 2019 +0100

    tdf#50916 Makes numbers of columns dynamic.

Change-Id: I7588e34a9a52cde0d38dd9c1f15e6bbdb3601241
Reviewed-on: https://gerrit.libreoffice.org/70345
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sc/qa/unit/data/slk/pass/ofz14093-1.slk

+C;X152;K" 
\ No newline at end of file

sc/source/core/data/table2.cxx

@@ -1405,11 +1405,13 @@ bool ScTable::TestCopyScenarioTo( const ScTable* pDestTab ) const
 bool ScTable::SetString( SCCOL nCol, SCROW nRow, SCTAB nTabP, const OUString& rString,
                          const ScSetStringParam * pParam )
 {
-    if (ValidColRow(nCol,nRow))
-        return aCol[nCol].SetString(
-            nRow, nTabP, rString, pDocument->GetAddressConvention(), pParam );
-    else
+    if (!ValidColRow(nCol,nRow))
+    {
         return false;
+    }
+
+    return CreateColumnIfNotExists(nCol).SetString(
+        nRow, nTabP, rString, pDocument->GetAddressConvention(), pParam);
 }
 
 bool ScTable::SetEditText( SCCOL nCol, SCROW nRow, std::unique_ptr<EditTextObject> pEditText )