Mercurial: how to undo last unpushed commit?

Question

I have accidentally made a commit to my local repository. To be more specific, I committed changes to lots of files all at once, when I meant to commit them one at a time. <

Answer 1

commenting and elaborating on @crobar's post cause # of characters is not enough.

when doing a local commit (no push) then run hg strip -r -1 --keep, it deletes your previous commit AND preserves your list of files waiting to be committed. basically this is a full undo.

if i use hg strip -r -1 without the --keep, it still deletes your previous commit BUT when i try to list the files to be committed it can't find a change so I wouldn't recommend doing this.

if i do a commit then do a push (to remote) then do hg strip -r -1 --keep, it does exactly what its supposed to do BUT when you do another commit then push, it creates another branch.

I.E. 

o----o----Branch (local)
      \
       \
        --o----o----o----Branch (with previous push)

my source/reference: testing these scenarios