In message K07.1, it appears that we are switching the character set from 7-bit ASCII to 8851 in order to parse hexBinary data. This change works expected, and after the hexBinary is parsed, the encoding is changed back to 7-bit ASCII. However, following that change, the encoding is incorrectly set back to 8851, apparently with a call to assignFrom(). This means following elements are incorrectly parsed with the 8851 encoding instead of the 7-bit ASCII encoding that they should be using, causing a failure.