Regression: incorrect null value for char enums

[jkolobok]

I use ilink binary schema.
For CmtaGiveUpCD enum it generates incorrect code for null value.
generated:
NULL_VAL((byte)48); //48=='0'
must be
NULL_VAL((byte)0);

it was working fine on 1.25.1 and got broken in 1.26

[jkolobok]

This issue probably caused the problem #889

[mjpt777]

The iLink 3 schema defines CmtaGiveUpCD of encoded type charNULL.

    <type name="charNULL" description="Char with null value" presence="optional" nullValue="0" primitiveType="char" semanticType="char"/>

This means the generated code is correct for a char type as "0" is 48 ASCII. Also note:

Note that the code point U+0000, assigned to the null control character, is the only character encoded in Unicode and ISO/IEC 10646 that is always invalid in any XML 1.0 and 1.1 document.

https://en.wikipedia.org/wiki/Valid_characters_in_XML#Characters_allowed_but_discouraged

It would make sense to take up this issue with the CME. They could resolve this by not defining the nullValue attribute on charNULL.