Fix duties override bug in VC #15462

Job	Run time
beacon-chain-tests	19m 11s
network-tests	17m 7s
op-pool-tests	19m 53s
release-tests-ubuntu	27m 41s
release-tests-windows	38m 8s
slasher-tests	5m 26s
target-branch-check	1s
check-code	10m 21s
check-msrv	4m 13s
debug-tests-ubuntu	12m 24s
dockerfile-ubuntu	13m 25s
doppelganger-protection-test	21m 29s
ef-tests-ubuntu	12m 21s
eth1-simulator-ubuntu	29m 47s
execution-engine-integration-ubuntu	19m 54s
merge-transition-ubuntu	29m 3s
no-eth1-simulator-ubuntu	27m 43s
state-transition-vectors-ubuntu	11m 5s
syncing-simulator-ubuntu	21m 55s
cargo-udeps	6m 40s
cli-check	17m 17s
compile-with-beta-compiler	13m 40s
test-suite-success	6s
	6h 18m 50s

Provide feedback