Repository module code completely different from downloaded file Using the Drupal Soundmanager2 module that hasn't been updated in about three years. Added a little functionality and want to submit a patch.

I think this can be done via git:

git clone --branch master http://git.drupal.org/project/soundmanager2.git


but the files shown in the tree that are in the download zip file are completely different from what's in the git repository.

Am I missing something here?
I think the master branch is still pointing to an old (probably obsolete) branch. To get the latest version, which is inline with the zip file you downloaded, you should use:

git clone --branch 7.x-2.x http://git.drupal.org/project/soundmanager2.git

Maybe you should open an issue and point them to the Moving from a master to a major version branch documentation.