MemoryFileSystem File.readAsBytesSync() failure

[simmule-turner]

MemoryFileSystem File.readAsBytesSync() produces different results than the default File.readAsBytesSync(). Adding Uint8List.fromList to the resultant bytes corrects the problem.

[simmule-turner]

When reading from a local file the data is correct in bytes. Once written to a MemoryFileSystem the data is retrieved incorrectly and requires an extra level of translation before it works. The below code does not work:
List bytes = File(path + '/' + filename).readAsBytesSync();
mfs.file('a${i}').writeAsBytesSync(bytes);
List xbytes = mfs.file('a_${i}').readAsBytesSync();

The above code does not produce a displayable image from bytes from the original file. However, adding this line allows an image to be displayed properly without other changes (In the example here I use a MemoryImage.
xbytes = Uint8List.fromList(xbytes);

The impact is that a MemoryFileSystem.file can not be used for a FileImage provider.

[simmule-turner]

LocalFileSystem() has the correct behavior.

[jamesderlin]

I think that this should have been fixed by dart-archive/file.dart#123.

[dnfield]

Closing on assumption dart-archive/file.dart#123 fixed this