The initializer for this test was set to generate 1000 dark matter particles for the baryonic self-similar (Bertschinger 1985) test. This change simply sets that to 0, as it should be. This is required to get the correct solution as shown in the new enzo method paper. This change is really a no-brainer.
Thanks Nathan -- that was fast. In fact, the test also needs Mike Kuhlen's PR#120, which I had forgotten was still outstanding (which is my fault). Can you confirm that if you use both this PR and PR#120 that you get the correct solution?