rest endpoint "sprintreport" not updated correctly

I am using the rest api for adding issues to sprints with the following endpoint:

http://jira:8080/rest/greenhopper/1.0/sprint/rank

Afterwards I query a sprint report from the following endpoint:

http://jira:8080/rest/greenhopper/1.0/rapid/charts/sprintreport

This works fine when adding issues to a sprint, all changes are contained by the result of the sprint report. When I then delete an issue from the sprint, then the sprint report data is not updated correctly. The removed issue is still contained in the sprint report data.

Everything is explained here:

https://answers.atlassian.com/questions/209920/jira-agile-rest-api-add-remove-issue-to-from-sprint