Fixed custom decoders not working for DateTime and Decimal by lostmsu · Pull Request #1497 · pythonnet/pythonnet

What does this implement/fix? Explain your changes.

Custom codecs were ignored for DateTime and Decimal because they have special values in TypeCode, which was not accounted for.

Does this close any currently open issues?

#1496

Any other comments?

Needs to be backported to 2.5

@innominate227 if you can review, this might get in faster.