Any time git media clean is run, it adds the Git Media file to the upload queue. You can replicate this:

1. Add/Edit a file. Note: You may not have to run git add {file} manually, git status or git diff seem to run the clean hook.
2. Confirm that it's listed in git media queues.
3. Edit the file again. Then run git add or check the diff again.
4. git media queues should list the file twice.

We should clear out old jobs matching the filename.

/cc #82