IDN support

Hi,
my yourls installation is on a non ascii domain. I could get yourls itself to give me short urls with the real domain, but the in wordpress I get te puny code (xn--…) domain. These puny codes aren’t really short. In fact, the puny code is longer than my original domain.

Is there a way to easily get IDN support into your plugin?

http://wordpress.org/extend/plugins/yourls-link-creator/