Switch from a unified diff into a split diff

[idbrii]

When I'm browsing commits, how can I switch from a unified diff (opening the commit in a buffer) to a split diff (Gdiffsplit)?

Since a commit can span multiple files, it'd have to act on the file owning the diff hunks under the cursor.

I can CR on a + line to open the file after the change and :Gdiffsplit !^ to start the diff. Not sure how to do that on - lines.

One of my first guesses was to call :Gdiffsplit in the buffer, but that has no effect.

[idbrii]

I figured out that the line containing the diff command is a special kind of fugitive-object:

diff --git a/data/scripts/file.lua b/data/scripts/file.lua

You can CR or most of the other :help fugitive-navigation-maps keys on that line to open a split diff.

I don't think this is anywhere in the help, so I'll open a PR to add.