Using the previous cache, add a new cache on top of it

Author: mthrok

.circleci/config.yml.in

@@ -266,13 +266,15 @@ jobs:
           keys:
           # NOTE: remove .Branch once it's ready
           {% raw %}
-            - vector-cache-v3-{{ .Branch }}-{{ checksum ".circle-week" }}
+            - vector-cache-v2-{{ .Branch }}-{{ checksum ".circle-week" }}
           {% endraw %}
       - run:
           name: Run tests
           # Downloading embedding vector takes long time.
           no_output_timeout: 30m
-          command: .circleci/unittest/scripts/run_test.sh
+          command: |
+              rm -rf .data
+              .circleci/unittest/scripts/run_test.sh
       - save_cache:
           # NOTE: remove .Branch once it's ready
           {% raw %}