The function  setDataBatch() of ERC725YCore has an extra check compared to the version in LSP0ERC725AccountCore. The extra check verifies if dataKeys.length == 0 and then reverts. The risk of this is very low though; however, it is not consistent.
Note: several other Batch functions dont check for array lenghts of 0 either.
ERC725YCore.sol#L73-L96
LSP0ERC725AccountCore.sol#L380-L424
Consider making the code consistent.
