fix(relayer): ProcessPendingBatches (#1661)

Co-authored-by: jonastheis <[email protected]>
Co-authored-by: Péter Garamvölgyi <[email protected]>

Author: jonastheis

common/version/version.go

@@ -5,7 +5,7 @@ import (
 	"runtime/debug"
 )
 
-var tag = "v4.5.14"
+var tag = "v4.5.15"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {

rollup/internal/controller/relayer/l2_relayer.go

@@ -319,6 +319,11 @@ func (r *Layer2Relayer) ProcessPendingBatches() {
 		return
 	}
 
+	// nothing to do if we don't have any pending batches
+	if len(dbBatches) == 0 {
+		return
+	}
+
 	// if backlog outgrow max size, force‐submit enough oldest batches
 	backlogCount, err := r.batchOrm.GetFailedAndPendingBatchesCount(r.ctx)
 	if err != nil {