How to apply commit to local changes?

[Aleksa Todorovic]

Hi!

I accidentely commited some changes I didn't want to (let's call it
commit A). So, I updated to previous revision, and continued
development. Now, I want to apply commit A to my local modifications
so I can pick changes which I want to commit, and others which I want
to discard. I can, certainly do this "by hand", or through patch, but
does Mercurial supports this operation?

Thanks in advance!