The condition if (_liquidity <= 0) is incorrect because _liquidity is uint128 being less than 0 is impossible. The only meaningful edge case is when _liquidity == 0, which should be explicitly checked. The incorrect condition causes confusion. 
https://github.com/code-423n4/2024-10-ramses-exchange/blob/4a40eba36bc47eba8179d4f6203a4b84561a4415/contracts/CL/core/RamsesV3Pool.sol#L688
