Mixed responses for the same request (Cloud REST API)

[Kristián Kostecký]

When I try to access permissions on `/permissions/check` I am getting different responses for the same request.

This is response from requests called immediately after each other. I would expect it to fail for both since the credentials are not real. 

Here's code snippet 

```

curl --request POST \

--url 'https://google.atlassian.net/rest/api/3/permissions/check' \

--user 'notexisting@email.address:somerandomstring' \

--header 'Accept: application/json' \

--header 'Content-Type: application/json' \

--data '{

"globalPermissions":["USER_PICKER"],"projectPermissions":[{"projects":[],"permissions":["BROWSE_PROJECTS","VIEW_DEV_TOOLS"]}]

}'

```