fix: event marking bug #5060

Job	Run time
sample_operators_tests (sample-operators/mysql-schema)	2m 36s
sample_operators_tests (sample-operators/tomcat-operator)	3m 40s
sample_operators_tests (sample-operators/webpage)	3m 10s
sample_operators_tests (sample-operators/leader-election)	3m 9s
	12m 35s

Provide feedback