Comment 4 for bug 57503

I'll give an example of what we were doing in katapult

In katapult, we were working on the 0.3.x-dev branch, in which we were stabilising and bugfixing the current code, while working on completely different things in the 0.4-dev branch.

This meant that while most people were using the main bugfix branch, some were using the development. If someone reported the issue in a development branch, we'd have no easy way of finding out whether it was just in the dev branch or the bugfix branch

Also, looking at a branch page and seeing something similar to "bugs occurring in this branch" would be a very useful feature.