I am not absolutely sure, whether this is the right place for this feature request.

When using a token like [user:one-time-login-url] on a idn-url like www.bürgerhaushalt-lichtenberg.de the token is rendered as
http://www.xn--brgerhaushalt-lichtenberg-fwc.de/user/reset/15627/1368219597/Gq7GZbxZqO3cGqMDl4LKc0gZ9FWHSLFh42n4-EI1Bwg

(As a consequence, the pass reset doesn't work, but this is a different case)

Would it be possible to support this in Token?

Tested in 7.x-1.4, 1.5 doesn't seem to have anything new in this respect.