Tests use a bugged implementation of LibERC7579 of Solady

[Kelvyne]

The ERC-7579 states that :

The execution mode is a bytes32 value that is structured as follows:

callType (1 byte): 0x00 for a single call, 0x01 for a batch call, 0xfe for staticcall and 0xff for delegatecall
execType (1 byte): 0x00 for executions that revert on failure, 0x01 for executions that do not revert on failure but implement some form of error handling
unused (4 bytes): this range is reserved for future standardization
modeSelector (4 bytes): an additional mode selector that can be used to create further execution modes
modePayload (22 bytes): additional data to be passed

The implementation of Solady has the following code:

    function encodeMode(bytes1 callType, bytes1 execType, bytes4 selector, bytes22 payload)
        internal
        pure
        returns (bytes32 result)
    {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, callType)
            mstore(0x01, execType)
            mstore(0x02, selector)
            mstore(0x06, 0)
            mstore(0x0a, payload)
            result := mload(0x00)
        }
    }

which I believe swaps the unused 4 bytes and the selector 4 bytes.
This was later fixed but the dependency of Kernel seems to be the outdated.

I don't think there are any implication other than some tests not passing (or missing)

[leekt]

will fix this on upcoming release