Resolve LHCBGAUSS-1524 ".evtrarelb2lllbugfix"
Propagate the merge of branch 'LHCBGAUSS-1524.EvtRareLb2LllBugFix' into 'Sim09-upgrade'
Closes LHCBGAUSS-1524
See merge request !367 (merged) in 'master' and !393 (merged) in 'Sim09'
(cherry picked from commit 3b999b03)