I want to create a panel for the homepage dashboard which displays the last 5 commits to the master branch and their build status.

We have two herald rules which trigger builds for two branches, the master branch and a stable branch.
It is easy to create a query which displays the last 5 builds but I haven't found a way to filter queries depending on which branch the commit which triggered the build is from.

There are two obvious ways that I can see to solve this problem.

1. Make it possible to filter builds by which herald rule triggered them
2. Make it possible to filter builds by which branch the commit being built is on.