Add changelog.

beacon-chain/sync/fork_watcher.go

@@ -1,6 +1,8 @@
 package sync
 
 import (
+	"fmt"
+
 	"github.com/OffchainLabs/prysm/v6/beacon-chain/p2p"
 	"github.com/OffchainLabs/prysm/v6/config/params"
 	"github.com/OffchainLabs/prysm/v6/consensus-types/primitives"
@@ -12,7 +14,6 @@ import (
 // Is a background routine that observes for new incoming forks. Depending on the epoch
 // it will be in charge of subscribing/unsubscribing the relevant topics at the fork boundaries.
 func (s *Service) forkWatcher() {
-	<-s.initialSyncComplete
 	slotTicker := slots.NewSlotTicker(s.cfg.clock.GenesisTime(), params.BeaconConfig().SecondsPerSlot)
 	for {
 		select {
@@ -46,6 +47,7 @@ func (s *Service) registerForUpcomingFork(currentEpoch primitives.Epoch) error {
 	}
 
 	if s.subHandler.digestExists(nextEntry.ForkDigest) {
+		log.WithField("digest", fmt.Sprintf("%#x", nextEntry.ForkDigest)).Debug("Already subscribed to fork")
 		return nil
 	}
 

beacon-chain/sync/service.go

@@ -413,6 +413,8 @@ func (s *Service) startDiscoveryAndSubscriptions() {
 		return
 	}
 
+	s.registeredNetworkEntry = params.GetNetworkScheduleEntry(currentEpoch)
+
 	// Register respective pubsub handlers at state synced event.
 	s.registerSubscribers(currentEpoch, forkDigest)
 

changelog/manu-fix-#15738.md

@@ -0,0 +1,2 @@
+### Fixed
+- [#15738](https://github.com/OffchainLabs/prysm/issues/15738)