getPair expects ordered token pair (tokenA<tokenB) and ordering not enforced in _addLiquidity #172

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getPair expects ordered token pair (tokenA<tokenB) and ordering not enforced in _addLiquidity#172

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v2-periphery/contracts/UniswapV2Router02.sol

Line 42 in 0335e8f

if (IUniswapV2Factory(factory).getPair(tokenA, tokenB) == address(0)) {

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