I have a JIRA project Proj1 and I want to move some of the issues from Proj1 to a new project called Proj2. The problem is that many of the commit messages have Proj1-XXX (which allows the related code to show up in the Source tab in JIRA). When I move the issue to Proj2, the related source no longer shows up (presumably because the commit comment still says Proj1). Is there a way to preserve the related source (without modifying the old commit messages)?