https://git-scm.com/book/en/v2/Git-Tools-Submodules
git push --recurse-submodules=check
git push --recurse-submodules=on-demand
https://git-scm.com/book/en/v2/Git-Tools-Submodules
git push --recurse-submodules=check
git push --recurse-submodules=on-demand