[Dev-luatex] Re: Crash when accessing the field 'data' of a whatsit(write) node

we can consider adding getfield(w,"rawdata") for write and special whatsits (maybe tl 2026); the current "data" access with expansion is not a bug and it won't change

Sounds very well! So write node will have fields: attr, stream, data, *rawdata. * thanks a lot!