Comments on test cases are not passed to external bug tracker

Question

Kiwi Version: 12.0

We successfully integrated Redmine as external bug trackers in Kiwi TCMS.

I.e., if we use Report bug to open a bug report, a issue is created in Redmine containing the text of the test case.

But we are missing the comments added by the tester during test run. Instead this text is appended at the end of the Redmine issue description:

Actual results:

<describe what happened>

1. Where does this text come from?
2. Why are the comments which should contain the "actual results" not transmitted to Redmine?

Steps to reproduce

1. Integrate Redmine as external bug tracker
2. Click Report bug on any Test Case during Test Run

Expected result

Test Case description and comments of tester are added as issue description in Redmine

Actual result

Test Case description is added as issue description in Redmine, but comments of tester are missing.