test_hlt2_reco_plus_thor_selections_fastest fails on master

The test test_hlt2_reco_plus_thor_selections_fastest has been failing on master since 2022-01-20. It only affects the x86_64_v3-centos7-gcc11-opt+g platform. The tests gives a consistent output, but it doesn't match the reference:

CountersMismatch	
Different content of Counters for algo llLambda0Combiner
    (llLambda0Combiner ref) # passed | 100 | 48 | ( 48.00000 +- 4.995998)%
    (llLambda0Combiner new) # passed | 100 | 49 | ( 49.00000 +- 4.999000)%
    (llLambda0Combiner ref) # passed CompositeCut | 336 | 137 | ( 40.77381 +- 2.680883)%
    (llLambda0Combiner new) # passed CompositeCut | 336 | 139 | ( 41.36905 +- 2.686777)%
Different content of Counters for algo xiCombiner
    (xiCombiner ref) # passed CombinationCut | 666 | 87 | ( 13.06306 +- 1.305833)%
    (xiCombiner new) # passed CombinationCut | 675 | 87 | ( 12.88889 +- 1.289712)%
    (xiCombiner ref) Input1 size | 100 | 137 | 1.3700
    (xiCombiner new) Input1 size | 100 | 139 | 1.3900