Fix key.id to be null if does not exist
Fix key.id to be null if does not exist

DimensionDataCBUSydney/mist.io,DimensionDataCBUSydney/mist.io,kelonye/mist.io,munkiat/mist.io,kelonye/mist.io,Lao-liu/mist.io,johnnyWalnut/mist.io,DimensionDataCBUSydney/mist.io,afivos/mist.io,zBMNForks/mist.io,johnnyWalnut/mist.io,DimensionDataCBUSydney/mist.io,Lao-liu/mist.io,Lao-liu/mist.io,afivos/mist.io,afivos/mist.io,zBMNForks/mist.io,zBMNForks/mist.io,johnnyWalnut/mist.io,munkiat/mist.io,munkiat/mist.io,munkiat/mist.io,kelonye/mist.io,Lao-liu/mist.io