fix cardinality error issue

apps/indexer/lib/indexer/block/reward/fetcher.ex

@@ -177,8 +177,8 @@ defmodule Indexer.Block.Reward.Fetcher do
       |> Enum.map(& &1.block_hash)
       |> Chain.gas_payment_by_block_hash()
 
-    beneficiaries_params
+    Enum.map(beneficiaries_params, fn %{block_hash: block_hash, address_type: address_type} = beneficiary ->
-    |> Enum.map(fn %{block_hash: block_hash} = beneficiary ->
+      if address_type == :validator do
         case gas_payment_by_block_hash do
           %{^block_hash => gas_payment} ->
             {:ok, minted} = Wei.cast(beneficiary.reward)
@@ -187,8 +187,10 @@ defmodule Indexer.Block.Reward.Fetcher do
           _ ->
             beneficiary
         end
+      else
+        beneficiary
+      end
     end)
-    |> Enum.uniq()
   end
 
   defp import_block_reward_params(block_rewards_params) when is_list(block_rewards_params) do