[closed] Save early, save often

So many times I have made the same mistake using Potlatch 2. I make a change, save it with an appropriate comment, and then make some more changes. At that point I can only save the new changes as part of the original changeset, even though its comment is not appropriate to the full set of changes. Is there anything that I can do to avoid this problem, other than remembering to close each changeset after it is saved?