Age and Missing Branches data missing for MonotonicGA algorithm

[ongaaron96]

Context

Some data is not recorded when using MonotonicGA algorithm - Age is always 0 and Missing Branches is always empty

Steps to Reproduce

Run Evosuite with the following options:

-Dsearch_budget 100 -Dinstrument_context true -Dp_test_delete 0 -Dp_test_change 0.9 -Dp_test_insert 0.3
-Dp_change_parameter 0.6 -Dp_functional_mocking 0 -Dmock_if_no_generator false -Dfunctional_mocking_percent 0 
-Dprimitive_reuse_probability 0 -Dmin_initial_tests 10 -Dmax_initial_tests 20 -Ddse_probability 0 
-Dinstrument_libraries true -Dinstrument_parent true -Dmax_attempts 100 -Dassertions false -Delite 10 
-Ddynamic_pool 0.5 -Dprimitive_pool 0.5 -Djunit_check false -Dadopt_smart_mutation false 
-Dapply_object_rule false -generateSuite -Dstrategy Evosuite -Dalgorithm MONOTONIC_GA -criterion branch