Another one more genesis fix.

Author: cheatfate

beacon_chain/sync/sync_overseer2.nim

@@ -733,7 +733,11 @@ proc updatePeer(overseer: SyncOverseerRef2, peer: Peer) =
         Opt.some(hentry.blockId.root)
       else:
         # Parent is present, so we searching for first missing one.
-        getPendingParentRoot(hentry)
+        let root = getPendingParentRoot(hentry)
+        if root.isSome() and (root.get() == GenesisCheckpoint.root):
+          Opt.none(Eth2Digest)
+        else:
+          root
     missingFinalizedRoot =
       if not(isNil(fentry)) and (DagEntryFlag.Pending in fentry.flags):
         # Missing parent situation
@@ -810,13 +814,9 @@ proc updatePeer(
     blck: ref ForkedSignedBeaconBlock,
     missingSidecars: bool
 ) =
-  let
-    parentRoot =
-      withBlck(blck[]):
-        forkyBlck.message.parent_root
-    slot = blck[].slot
-    root = blck[].root
-
+  let (slot, root, parentRoot) =
+    withBlck(blck[]):
+      (forkyBlck.message.slot, forkyBlck.root, forkyBlck.message.parent_root)
   overseer.updatePeer(
     peerId, peerMustPresent, slot, root, parentRoot, missingSidecars)
 
@@ -827,12 +827,9 @@ proc updatePeer(
     blck: ForkedSignedBeaconBlock,
     missingSidecars: bool
 ) =
-  let
-    parentRoot =
-      withBlck(blck):
-        forkyBlck.message.parent_root
-    slot = blck.slot
-    root = blck.root
+  let (slot, root, parentRoot) =
+    withBlck(blck):
+      (forkyBlck.message.slot, forkyBlck.root, forkyBlck.message.parent_root)
   overseer.updatePeer(
     peerId, peerMustPresent, slot, root,  parentRoot, missingSidecars)