Hitting cancel when configuring @Root yields a stacktrace on (sputnik-mainline 116a7878b1fb4e29ccc4ac31518c2ec483ac343b)

Error details: ...ik/rocks//sputnik/cvs-1/lua/sputnik/actions/wiki.lua:164: attempt to call field '?' (a nil value) stack traceback:

...ik/rocks//sputnik/cvs-1/lua/sputnik/actions/wiki.lua:164: in function 'action_function'
...ik/sputnik/rocks//sputnik/cvs-1/lua/sputnik/init.lua:782: in function <...ik/sputnik/rocks//sputnik/cvs-1/lua/sputnik/init.lua:723>