Lack of safeApprove(0) prevents some registrations, and the changing of stakers and LP tokens

Lines of code Vulnerability details OpenZeppelin's safeApprove will revert if the account already is approved and the new safeApprove is done with a non-zero value function safeApprove IERC20 token, address spender, uint256 value internal // safeApprove should only be called when setting an initi...