What git gotchas have you been caught by?

Question

The worst one I\'ve been caught by was with git submodules. I had a submodule for a project on github. The project was unmaintained, and I wanted to submit patches, but co

Answer 1

The usual trailing slash when adding a submodule:

When you use git add on a submodule, make sure you don’t have a tailing slash.

> git add local/path
  -- adds the submodule

> git add local/path/
  -- adds all the files in the submodule directly into your repository, big no-no