Poor status output during conflicted merge

Let's create a merge conflict and then partially resolve it:

git init bad-status
cd bad-status/
echo 1 > file
git add file
git commit -a -m1
echo 2 > file
git commit -a -m2
git checkout -b topic HEAD^
echo 3 > file
git commit -a -m3
git merge master
git checkout --ours file
git add file

A 'git status' at this point gives the following output:

# On branch topic
nothing to commit (working directory clean)

Which is wrong, since the merge still needs to be committed.

- Eric