Hello Guix folks,

I submitted a change addressing this bug to groff Git back in
January[1].  Despite repeated requests I couldn't scare up any Windows
users to test it, and that's only environment except for Guix (until you
patched around it) that ever exhibited it.

If my understanding of the problem is correct, then something (possibly
preconv) using libgroff should throw an assertion failure.

My thanks if you can help.

Regards,
Branden

[1] https://savannah.gnu.org/bugs/?55475