Error importing VTU with <AppendedData encoding="raw"> block #27
Description
The attached file fluid_1_91.vtu cannot be loaded using v0.6.0 or the release-0.7 branch and results in the errors:
XML error: Deserialization error: Xml(UnexpectedEof("</Err(Utf8Error { valid_up_to: 0, error_len: Some(1) })>"))
Deserialization error: Xml(UnexpectedEof("</Err(Utf8Error { valid_up_to: 0, error_len: Some(1) })>"))
Unexpected EOF during reading </Err(Utf8Error { valid_up_to: 0, error_len: Some(1) })>.
Unexpected EOF during reading </Err(Utf8Error { valid_up_to: 0, error_len: Some(1) })>.
while Paraview is able to load the file.
The file uses a <AppendedData encoding="raw">...</AppendedData> raw binary block for all the data arrays and I suspect it happens to contain characters or sequences that confuse the XML parser.
The file fluid_1_91_encoded.vtu can be read without problems after opening the original file in Paraview and re-exporting it to VTU with the option "Encode appended data" which I guess applies base64 encoding.
I don't know if it is possible to somehow use different options for the XML parser to support the raw binary block or whether this is actually not allowed by the XML format and would require manual parsing.