Fix no known bookies after reset racks for all BKs (#4128) #1111

Job	Run time
PR Validation	7m 40s
Integration Tests	6m 49s
Bookie Tests	20m 59s
Client Tests	36m 37s
Backward compatibility tests	3m 41s
Replication Tests	14m 52s
Compatibility Check Java8	19m 31s
Build with macos on JDK 11	5m 47s
Remaining Tests	17m 51s
Compatibility Check Java11	20m 6s
Build with windows on JDK 11	5m 30s
TLS Tests	12m 57s
Compatibility Check Java17	19m 23s
StreamStorage Tests	18m 35s
OWASP Dependency Check	0s
Shell tests	21s
	3h 30m 39s

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