Crash test update

[Caolán McNamara]

On Thu, 2017-11-23 at 12:21 +0000, Crashtest VM wrote:
> New crashtest update available at http://dev-builds.libreoffice.org/c
> rashtest/95e3e5b83b2b7be86310f38aeae60cd4bc83939b/

fdo41403-1.xlsm and some others crash in Chart2PositionMap and
https://gerrit.libreoffice.org/#/c/45155/ might be the fix there

but, fdo69698-1.ods still crashes in chart2
StockDataInterpreter::interpretDataSource on referencing aData[0] where
aData is empty and reverting 3af8a4faf5e20ccae2386052697713da160afb16
locally makes it not crash. Any ideas what the right solution is ?