Builtin "post_mr_plan_comment" creates threads instead of comments

After testing the builtin "post_mr_plan_comment" we realised, that it creates threads (discussions) instead of comments. This leads to the necessity to close all threads by hand in order to be able to merge the MR:

Is there some good reasons why threads instead of comments are created? Maybe https://pkg.go.dev/gitlab.com/gitlab-org/api/client-go#NotesService.CreateMergeRequestNote instead of https://pkg.go.dev/gitlab.com/gitlab-org/api/client-go#DiscussionsService.CreateMergeRequestDiscussion would be the better way?