TauRecTools: Check CellLinks before use in TauPi0ClusterCreator
Hi,
A segmentation fault was identified when running the TauAODReReco chain [1] in AOD to DAOD_PHYS stage [2]. This patch is to fix the rare segfault by checking the links before use.
Cheers, Dong
CC @calpigia @jcatmore @martindl @qbuat @dta
[1]!52225 (merged) [2] ATLASG-1637.
Edited by Bertrand Martin Dit Latour