Draft:adding protection when SV1_TrackParticleLinks aux data can't be retrieved
There is a crash reported in this (jira https://its.cern.ch/jira/browse/ATLASDPD-1679) when the SV1TrackThining package in DerivationFrameworkTop tries to retrieve aux-data "SV1_TrackParticleLinks" of BTagging object. In this MR added a protection.
Edited by Buddhadeb Mondal