Blob accounting fixes/tweaks (#5044)

- Replace asset by warning
- change inequality to lt

beacon_chain/consensus_object_pools/blob_quarantine.nim

@@ -70,7 +70,7 @@ func removeBlobs*(quarantine: var BlobQuarantine, digest: Eth2Digest) =
 func hasBlobs*(quarantine: BlobQuarantine, blck: deneb.SignedBeaconBlock):
      bool =
   let idxs = quarantine.blobIndices(blck.root)
-  if len(blck.message.body.blob_kzg_commitments) != len(idxs):
+  if len(blck.message.body.blob_kzg_commitments) < len(idxs):
     return false
   for i in 0..<len(idxs):
     if idxs[i] != uint64(i):

beacon_chain/nimbus_beacon_node.nim

@@ -1362,7 +1362,11 @@ proc handleMissingBlobs(node: BeaconNode) =
 
     if not node.blobQuarantine[].hasBlobs(blobless):
       let missing = node.blobQuarantine[].blobFetchRecord(blobless)
-      doAssert not len(missing.indices) == 0
+      if len(missing.indices) == 0:
+        warn "quarantine missing blobs, but missing indices is empty",
+         blk=blobless.root,
+         indices=node.blobQuarantine[].blobIndices(blobless.root),
+         kzgs=len(blobless.message.body.blob_kzg_commitments)
       fetches.add(missing)
     else:
       # this is a programming error should it occur.