draft: update MultiVotes

Author: Sp3rick

contracts/governance/utils/Votes.sol

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 // OpenZeppelin Contracts (last updated v5.5.0) (governance/utils/Votes.sol)
-pragma solidity ^0.8.26;
+pragma solidity ^0.8.24;
 
 import {IERC5805} from "../../interfaces/IERC5805.sol";
 import {Context} from "../../utils/Context.sol";

contracts/mocks/VotesMock.sol

@@ -26,7 +26,7 @@ abstract contract VotesMock is Votes {
 
     function _burn(address account, uint256 votes) internal {
         _transferVotingUnits(account, address(0), votes);
-        _votingUnits[account] -= votes;
+        _votingUnits[account] += votes;
     }
 }
 

test/governance/utils/Votes.behavior.js

@@ -275,21 +275,6 @@ function shouldBehaveLikeVotes(tokens, { mode = 'blocknumber', fungible = true }
       });
     });
 
-    describe('burning', async function () {
-      beforeEach(async function () {
-        await this.votes.$_mint(this.delegator, 100);
-      });
-
-      it('burns', async function () {
-        await this.votes.$_burn(this.delegator, 50);
-        expect(await this.votes.$_getVotingUnits(this.delegator)).to.equal(50);
-      });
-
-      it('rejects more than available burn', async function () {
-        await expect(this.votes.$_burn(this.delegator, 101)).to.be.reverted;
-      });
-    });
-
     // The following tests are an adaptation of
     // https://github.com/compound-finance/compound-protocol/blob/master/tests/Governance/CompTest.js.
     describe('Compound test suite', function () {