[BUG]: octokit.graphql gives increasing number of duplicate

[TigersWay]

What happened?

I'm trying to call a paginated graphQL query. I always get the same number of results but that result includes more and more duplicates at every run!

  do {
    results = await octokit.graphql(
      `query ($queryStr: String!, $cursor: String) {
        search(query: $queryStr, type: REPOSITORY, first: 100, after: $cursor) {
          nodes {
            ...on Repository {
              nameWithOwner
              name
              description
...
          pageInfo {
            hasNextPage
            endCursor
          }
        }
        rateLimit { limit, cost, remaining, resetAt }
      }`,
      { queryStr: 'topic:eleventy stars:>0', cursor: myCursor }
    );
    repos = repos.concat(results.search.nodes);
    myCursor = results.search.pageInfo.endCursor;
  } while (results.search.pageInfo.hasNextPage);

I originally tried with @octokit/plugin-paginate-graphql which has the same trouble.

I have little/no idea where to start to debug 😊

Versions

@octokit/core: 4.2.0
node: 16.19.0

Relevant log output

No response

Code of Conduct

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[TigersWay]

Adding a sorting term to the query seems to make it work correctly... so far!