The previous answer box is freed with QueueFree when hidden; when the next
question opens in the same frame the new box gets an auto name and the old
one, still named AnswerBox, is already queued for deletion. On a slow disk
this happened often and the test failed to find the variants.
The cooking_walk integration test moves here from the separate
cooking_walk_test mod as test_suites/cooking_walk, mounted as the virtual
mod cooking__cooking_walk only with --itest=cooking_walk.
cthangover