When is GitSignsStagedUntracked highlight group even used?

[dasupradyumna]

I understand that GitSignsUntracked highlight group is used for new untracked files in a git repository. But what about GitSignsStagedUntracked ?? The documentation is not very clear.

Also, when an untracked file is staged, it is added to the index and GitSignsStagedAdd is used for the signs and their corresponding highlight groups as well. This makes sense to me.

I only want to understand the case in which GitSignsStagedUntracked is actually used. Is it a placeholder for future implementation?