Add a test to ensure !include files use the same loader (settings)

octodns/yaml.py

@@ -38,7 +38,7 @@ class ContextLoader(SafeLoader):
         def load_file(filename):
             filename = join(directory, filename)
             with open(filename, 'r') as fh:
-                return safe_load(fh, self.__class__)
+                return load(fh, self.__class__)
 
         if not isinstance(node.value, list):
             # single filename, just load and return whatever is in it

tests/config/include/dict_too.yaml

@@ -1,3 +1,5 @@
 ---
-foo: bar
 z: 43
+# keys are intentionally out of order here to ensure !include files are loaded
+# with the same laoder class and thus "settings" as their parent
+foo: bar