Note: I'm not sure about the correctness of my claims about submodules and their defaults. 😀

I did some empirical testing (because I wanted submodules!):

• without submodules: true
• with submodules: true

The difference is, with submodules: true the following get executed at the end of the action:

git submodule sync
git -c http.https://github.com.extraheader="AUTHORIZATION: basic ***" submodule update --init --force

So I'd say the proposed improvement is accurate!

@ethomson we do run git clean -ffdx to delete nested git repo under the main repo.

If the Git configuration variable clean.requireForce is not set to false, git clean will refuse to delete files or directories unless given -f, -n or -i. Git will refuse to delete directories with .git sub directory or file unless a second -f is given.

Thanks @TingluoHuang, I checked the docs again and you're obviously right.