Fix: Editing the commit message publishes draft patch set If a patch set is draft, and the commit message is edited from the Web UI, the new patch set is not a draft. The draft status was being set on the new patch set, but should be set on the patch set inserter. Bug: Issue 2180 Change-Id: I035df9c9d6e46b0595fb1d9b017d284551d1b261