EpochManager fixes

packages/protocol/contracts-0.8/common/EpochManager.sol

@@ -196,7 +196,7 @@ contract EpochManager is
         epochProcessing.toProcessGroups++;
         uint256 groupScore = getScoreReader().getGroupScore(group);
         // We need to precompute epoch rewards for each group since computation depends on total active votes for all groups.
-        uint256 epochRewards = getElection().getGroupEpochRewards(
+        uint256 epochRewards = getElection().getGroupEpochRewardsScore(
           group,
           epochProcessing.totalRewardsVoter,
           groupScore
@@ -331,6 +331,10 @@ contract EpochManager is
       validatorPendingPayments[elected[i]] += validatorReward;
       totalRewards += validatorReward;
     }
+    if (totalRewards == 0) {
+      return;
+    }
+
     // Mint all cUSD required for payment and the corresponding CELO
     validators.mintStableToEpochManager(totalRewards);
     // this should have a setter for the oracle.

packages/protocol/contracts/governance/Election.sol

@@ -590,7 +590,7 @@ contract Election is
    * @return The amount of rewards that voters for `group` are due at the end of an epoch.
    * @dev Eligible groups that have received their maximum number of votes cannot receive more.
    */
-  function getGroupEpochRewards(
+  function getGroupEpochRewardsScore(
     address group,
     uint256 totalEpochRewards,
     uint256 groupScore

packages/protocol/contracts/governance/interfaces/IElection.sol

@@ -49,7 +49,7 @@ interface IElection {
     uint256,
     uint256[] calldata
   ) external view returns (uint256);
-  function getGroupEpochRewards(
+  function getGroupEpochRewardsScore(
     address group,
     uint256 totalEpochRewards,
     uint256 groupScore

packages/protocol/scripts/foundry/create_and_migrate_anvil_l2_devchain.sh

@@ -31,9 +31,10 @@ CELO_DISTRIBUTION_SCHEDULE_ADDRESS=$(
 # implement the receive function nor does it allow ERC20 transfers. This is the only way I 
 # managed to give the CeloUnreleasedTreasure a balance.
 echo "Setting CeloUnreleasedTreasure balance..."
+HEX_CELO_DISTRIBUTION_SCHEDULE_INITIAL_BALANCE=$(cast to-hex $CELO_DISTRIBUTION_SCHEDULE_INITIAL_BALANCE"000000000000000000")
 cast rpc \
   anvil_setBalance \
-  $CELO_DISTRIBUTION_SCHEDULE_ADDRESS $CELO_DISTRIBUTION_SCHEDULE_INITIAL_BALANCE \
+  $CELO_DISTRIBUTION_SCHEDULE_ADDRESS $HEX_CELO_DISTRIBUTION_SCHEDULE_INITIAL_BALANCE \
   --rpc-url $ANVIL_RPC_URL
 
 # Run L2 migrations

packages/protocol/test-sol/devchain/e2e/common/EpochManager.t.sol

@@ -241,7 +241,7 @@ contract E2E_EpochManager_FinishNextEpochProcess is E2E_EpochManager {
       groupWithVotes[i] = GroupWithVotes(
         groupsEligible[i],
         values[i] +
-          election.getGroupEpochRewards(groupsEligible[i], totalRewardsVote, groupScore[i])
+          election.getGroupEpochRewardsScore(groupsEligible[i], totalRewardsVote, groupScore[i])
       );
     }