One of my repos has a dependency on another repo (that I also own). I initialized it as a git submodule (e.g. my_org/repo1 has a submodule of my_org/repo2).

    Git submodules have some places where you can surprisingly lose branches/stashed changes.

This concerns me, as git generally behaves as a leak-proof abstraction in my experience. Can you elaborate or share where I can learn more about this issue?