I would have reverted to a previous commit, so I ran this command which I get from this answer, but I got this:
#git revert -n 91fc9480d110360374e3813a729b4fa31a64c524
git_test.txt: unmerged (af7a07f6e5655100c7a725ef716593a5c0ff4234)
git_test.txt: unmerged (c4c8e23a9649945a03834c259e7471e5c848e6c7)
git_test.txt: unmerged (78b6f029e42ad16f82827bf93d286f47d3b6d79a)
fatal: Your index file is unmerged.
Can any one explain what did I do here, because I got this just after:
# git merge b2
fatal: 'merge' is not possible because you have unmerged files.
Please, fix them up in the work tree, and then use 'git add/rm <file>' as
appropriate to mark resolution and make a commit, or use 'git commit -a'.