Getting 422 Unprocessable Entity response from GitHub Search API

[harkiratdhanoa]

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We're using search APIs authenticated via an OAuth application. Some of these APIs such as:

1. https://github.com/gitapi/search/repositories
2. https://github.com/gitapi/search/issues
   Are giving us a 422 response with the following message:

{
    "message": "Validation Failed",
    "errors": [
        {
            "message": "The listed users and repositories cannot be searched either because the resources do not exist or you do not have permission to view them.",
            "resource": "Search",
            "field": "q",
            "code": "invalid",
        }
    ],
    "documentation_url": "https://docs.github.com/v3/search/",
    "status": "422",
}

The query parameters of the request are as follows:
{'q': 'query_term user:username', 'per_page': 7}

The username is actually fetched by making an API call to /user endpoint, so it's highly unlikely that the authenticated token doesn't have permission to view it's own user's data.

Can anyone share more context if they've dealt with this error before? What could we be doing wrong?

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