CRASHING. test cleanup (all but 1)
CRASHING. test cleanup (all but 1)

the 1 is the one that counts. Trying to call align_topics on the full
set of distances among the four models causes a crash.

agoldst/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics