R1:065d865bce0d

In the "Version Information" panel, try to include branchpoints

Summary:
Fixes T12040. In T12039, a user running local patches followed the report instructions as far as grabbing version information, but didn't update or revert their local changes or try against a clean install before reporting.

This obviously isn't ideal for us, but it's understandable (grabbing version information is much easier than upgrading/reverting), and we can do better about making this information useful: when compiling version…