Can't register key for new user

[rgherdt]

When running snow-chibi reg-key I get:

ERROR in cddr on line 8 of file /usr/local/share/chibi/init-7.scm: cdr: not a pair: ()
  called from sxml-display-as-text on line 161 of file /usr/local/share/chibi/chibi/sxml.scm
  called from <anonymous> on line 799 of file /usr/local/share/chibi/chibi/snow/commands.scm
  called from <anonymous> on line 136 of file /usr/local/share/chibi/chibi/app.scm
  called from <anonymous> on line 1268 of file /usr/local/share/chibi/init-7.scm
  called from <anonymous> on line 800 of file /usr/local/share/chibi/init-7.scm

I tried the 0.10.0 release and code compiled from the current master branch, both running on Debian 11.