Redmine

At the bottom right, I can see all commits related to an issue. I'm using Git with Redmines redmine_git_hosting plugin in combination with gitolite. This is working great except the following scenario:
Commit some changes to the local repo with a message like "test test IssueID #22" and push it to origin master using this command: "git push origin master". Afterwards change the commits message on the local repo with "git rebase -i". Try to push this to origin master, it won't work (this is a correct behavior). To force the push use "git push origin master -f" and the commit will be pushed. You can see the new revision hash in the repository view and all seems to be good. But if you look in that related issues view, you can see the first commit AND the rebased commit. If you rebase your commits several Times, this could cause an undefined number of commits that are not exist anymore related to several issues.

So the first commit does not exist anymore and it seems that redmine is using some cache mechanism to persist that commit information. I know I can remove the relation of the first commit to that issue, by click on the firsts commit hash and click on the anchor removal icon. But I want to remove the whole set of outdatet commits which are obsolete by rebase.