Our bank does it. Care has been taken not to break cases where
Ntry/NtryDtls/TxDtls isn't used: if any piece of information isn't found
on these nodes, the matching information from the Ntry is used. Most
often the entry has a sum or a summary and the transaction details are
more precise and specific, so it makes sense to use their contents
rather than its.
Message was not taken from AddtlNtryInf element, if not part of details.
Not sure wether it actually can be part of details (NtryDtls element), but this change least intrusive.