Submitting multiple patches to Git


I'm a bit confused about the preferred workflow for submitting patches through Git.  I have two unrelated patches, and had submitted a pull request for the first patch.  But when I tried to submit a second pull request, Git really wanted to bundle my two commits into one pull request.

It seems to me that it would be cleaner to keep the two patches in their own pull requests, but I don't see an easy way to do this until the first pull request gets closed.

Any suggestions?