In `Browse Refs` show `gone` for branches tracking remote branches that have been deleted.

What steps will reproduce the problem?

1. Open Browse References dialog
2. Select Heads

What is the expected output? What do you see instead?

I see a list of local branches and the remote branches they are tracking. If the remote branch has been deleted there is no indication of that. That makes it very difficult to know which branches I should delete in order to bring my local repo into line with the remote repo.

What version of TortoiseGit and Git are you using? On what operating system?

TortoiseGit: 2.12.0.0 Git: 2.31.1.windows.1

Please provide any additional information below.

Note that git branch -vv does indicate which remotes are deleted using the gone flag on the remote name

But there is no indication of that in the TortoiseGit view.