IRP_MJ_SET_INFORMATION, FILE_BASIC_INFORMATION and FileAttributes == 0

Can I ALWAYS assume that a IRP_MJ_SET_INFORMATION dispatch for
FileBasicInformation where the FileAttributes value is zero indicates
that the attributes will NOT be set as part of this call? I see in the
FastFat source that this IS the case and I see from behavior that NTFS
also functions this way (at least seems to in all scenarios that I am
seeing).

Thanks, /TomH