A tag to rollback another changeset

Hi

Is there a tag to make a changeset rollback another one. I created some tables in a first version of my database and I don’t want those tables to be in the next version. I know I can create the changeSet but the rollback must rewrite all table and constraint definitions. Moreover, I can’t use changeSetPath to generate the rollback automatically because of the bug CORE-871.
Any idea ? Thanks