setBonusToken() is actually appending a new bonus token to the previous list of bonus tokens. The function name should reflect the action its taking, or else reviewers and users will get confused about what the code is actually doing
There is 1 instance of this issue:
https://github.com/code-423n4/2022-05-rubicon/blob/8c312a63a91193c6a192a9aab44ff980fbfd7741/contracts/rubiconPools/BathToken.sol#L269-L272
