Std.File.Copy() can fail under some circumstances when copying from a remote Dali with a "Source file format is not specified or is unsuitable for (re-)partitioning" error (DFTERR_FormatNotSpecified).
This type of error can usually be worked around when using dfuplus by setting the 'nosplit' argument to true. This option is not available to Std.File.Copy. Other standard library functions (e.g. Std.File.RemotePull) may also need this as an optional parameter.
The 'Add expiry option to STD.File.Copy' will be implemented here, because same small changes needed (add the expiry option to std.file.copy and store its value into the request structure).