Disable partial state group caching for wildcard lookups

When _get_state_for_groups is given a wildcard filter, just do a complete
lookup. Hopefully this will give us the best of both worlds by not filling up
the ram if we only need one or two keys, but also making the cache still work
for the federation reader usecase.

tests/util/test_dict_cache.py

@@ -32,7 +32,7 @@ class DictCacheTestCase(unittest.TestCase):
 
         seq = self.cache.sequence
         test_value = {"test": "test_simple_cache_hit_full"}
-        self.cache.update(seq, key, test_value, full=True)
+        self.cache.update(seq, key, test_value)
 
         c = self.cache.get(key)
         self.assertEqual(test_value, c.value)
@@ -44,7 +44,7 @@ class DictCacheTestCase(unittest.TestCase):
         test_value = {
             "test": "test_simple_cache_hit_partial"
         }
-        self.cache.update(seq, key, test_value, full=True)
+        self.cache.update(seq, key, test_value)
 
         c = self.cache.get(key, ["test"])
         self.assertEqual(test_value, c.value)
@@ -56,7 +56,7 @@ class DictCacheTestCase(unittest.TestCase):
         test_value = {
             "test": "test_simple_cache_miss_partial"
         }
-        self.cache.update(seq, key, test_value, full=True)
+        self.cache.update(seq, key, test_value)
 
         c = self.cache.get(key, ["test2"])
         self.assertEqual({}, c.value)
@@ -70,7 +70,7 @@ class DictCacheTestCase(unittest.TestCase):
             "test2": "test_simple_cache_hit_miss_partial2",
             "test3": "test_simple_cache_hit_miss_partial3",
         }
-        self.cache.update(seq, key, test_value, full=True)
+        self.cache.update(seq, key, test_value)
 
         c = self.cache.get(key, ["test2"])
         self.assertEqual({"test2": "test_simple_cache_hit_miss_partial2"}, c.value)
@@ -82,13 +82,13 @@ class DictCacheTestCase(unittest.TestCase):
         test_value_1 = {
             "test": "test_simple_cache_hit_miss_partial",
         }
-        self.cache.update(seq, key, test_value_1, full=False)
+        self.cache.update(seq, key, test_value_1, fetched_keys=set("test"))
 
         seq = self.cache.sequence
         test_value_2 = {
             "test2": "test_simple_cache_hit_miss_partial2",
         }
-        self.cache.update(seq, key, test_value_2, full=False)
+        self.cache.update(seq, key, test_value_2, fetched_keys=set("test2"))
 
         c = self.cache.get(key)
         self.assertEqual(