Revert "remove test_get_dataset_force_refresh_cache_clean_start"

This reverts commit 9dffaae.

Author: geetu040

tests/test_datasets/test_dataset_functions.py

@@ -475,6 +475,14 @@ def test_get_dataset_force_refresh_cache(self):
         openml.datasets.get_dataset(2, force_refresh_cache=True)
         assert change_time != os.stat(cache_dir).st_mtime
 
+    @pytest.mark.test_server()
+    def test_get_dataset_force_refresh_cache_clean_start(self):
+        did_cache_dir = os.path.join(openml.config.get_cache_directory(),"api","v1","xml","data","2","body.xml")
+
+        # Test clean start
+        openml.datasets.get_dataset(2, force_refresh_cache=True)
+        assert os.path.exists(did_cache_dir)
+
     def test_deletion_of_cache_dir(self):
         # Simple removal
         did_cache_dir = _create_cache_directory_for_id(