When I check out a previous commit of a git repository, 'git log' no longer shows commits that were committed after the currently checked out commit.
So, the question is: how do get a log of commits after the currently checked out one?
You can use the --all flag to see all revisions, as in
git log --all
If you are just interested in the future revisions, you can also use
git log ..@{1} # assuming you just switched from the future master
git log ..abcdef # assuming abcdef is the newest future commit