Git submodule head ‘reference is not a tree’ error http://stackoverflow.com/questions/2155887/git-submodule-head-reference-is-not-a-tree-error
Git submodule update fatal error: reference is not a tree http://stackoverflow.com/questions/13425298/git-submodule-update-fatal-error-reference-is-not-a-tree
Unstaged changes left after git reset –hard http://stackoverflow.com/questions/11383094/unstaged-changes-left-after-git-reset-hard
Rewriting History
Git Interactive Rebase, Squash, Amend and Other Ways of Rewriting History https://robots.thoughtbot.com/git-interactive-rebase-squash-amend-rewriting-history
Git: To squash or not to squash? http://jamescooke.info/git-to-squash-or-not-to-squash.html
Squash several […]