Sync with ethereum/consensus-specs#1306 (no logic change)

ralexstokes · Aug 31, 2019 · 087c853 · 087c853
1 parent 75f9680
commit 087c853
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/eth2/beacon/fork_choice/lmd_ghost.py b/eth2/beacon/fork_choice/lmd_ghost.py
@@ -139,12 +139,12 @@ def get_ancestor(self, block: BaseBeaconBlock, slot: Slot) -> BaseBeaconBlock:
         Return the block in the chain that is a
         predecessor of ``block`` at the requested ``slot``.
         """
-        if block.slot == slot:
+        if block.slot > slot:
+            return self.get_ancestor(self._get_parent_block(block), slot)
+        elif block.slot == slot:
             return block
-        elif block.slot < slot:
-            return None
         else:
-            return self.get_ancestor(self._get_parent_block(block), slot)
+            return None
 
 
 AttestationTarget = Tuple[ValidatorIndex, Optional[BaseBeaconBlock]]