Issue with Load to draft in version of dialogflow Cx agent

[rohithdigajerla]

-- Issue description (short summary)  --
In dialogflow agent, after creating the version, to restore back the selected version there is an option called LOAD TO DRAFT. After using this everything was not restoring. It only restores pages and flows but not intends, entities, webhooks etc...

There is also a special checkbox which indicates , this will override the current resources in the flow( Intends, Entities, webhooks..etc).Even after check-in it doesn't worked.

-- Steps to reproduce the issue (detailed description)  --

1.Create dialogflow agent with some pages, flows, intends and webhooks

2. Create a version in manage section

3. Make some changes in agent like adding new pages, intends and deleting some intends.

4. Now navigate to manage > version

5. Select the version previously created, in option click Load to Draft.

6. After loading, refresh the pages


-- Expected behavior  --
7. Agent should completely restore with pages, intends (same as before changes done )

-- Actual behavior  --

8 . But the actual output was, only pages are updated but no changes in intends , webhooks, entities... etc.

Reference : 

https://cloud.google.com/dialogflow/cx/docs/concept/version

correct me if I did anything wrong.