When going to the Web API documentation page from the top right help menu. If I click on the flag to display the deprecated api and then click on any of the endpoint the flag status is reset and I don't see anymore the deprecated endpoints.
The bug only happen when starting from page "/web_api", once a ws has been selected at least once, it works correctly.
To fix it we should add the flags and search string in url query parameters. It would also allow users to share links with correct filters.