Enable prep_butler unit tests again

Some unit tests were temporarily marked expectedFailure in 674a4b1.

Now that we switch to the new query system, make them work again.

The test repo was put together using middleware tools, which
intrinsically uses butler repo's visit-detector regions with its
padding from defineVisits config.

That padding config is not the same as the preload region padding
in prompt processing.

This explains the patch differences in template selection.

tests/test_middleware_interface.py

@@ -275,9 +275,8 @@ def _check_imports(self, butler, group, detector, expected_shards):
         # Check that the right templates are in the chained output collection.
         # Need to refresh the butler to get all the dimensions/collections.
         butler.registry.refresh()
-        for patch in (142, 143, 144, 158, 159, 160, 161, 175, 176, 177, 178,
-                      # TODO DM-43712: doesn't load 179 or 196
-                      179, 192, 193, 194, 195, 196, 210, 211,):
+        for patch in (142, 143, 158, 159, 160, 161, 175, 176, 177, 178,
+                      192, 193, 194, 195, 210, 211,):
             with self.subTest(tract=7445, patch=patch):
                 self.assertTrue(
                     butler.exists('goodSeeingCoadd', tract=7445, patch=patch, band="g",
@@ -308,8 +307,6 @@ def _check_imports(self, butler, group, detector, expected_shards):
                           collections=preload_collection)
         )
 
-    # TODO: prep_butler doesn't grab all the refcats. Should be fixable on DM-43712
-    @unittest.expectedFailure
     def test_prep_butler(self):
         """Test that the butler has all necessary data for the next visit.
         """
@@ -366,8 +363,6 @@ def test_prep_butler_novalid(self):
 
         mock_pre.assert_not_called()
 
-    # TODO: prep_butler doesn't grab all the refcats. Should be fixable on DM-43712
-    @unittest.expectedFailure
     def test_prep_butler_twice(self):
         """prep_butler should have the correct calibs (and not raise an
         exception!) on a second run with the same, or a different detector.