I'm trying to figure out the best way to handle the situation where a project decides to use submodules in Git.  The archive generated doesn't incorporate the submodule files.  

I've done some searching on this, and haven't really come up with much.
I've reviewed:  Packaging:Github
; but that really doesn't address the submodule issue.

I looked through some packages that are currently in the Fedora repository and found where a few folks have rebuilt the tarball and referenced that version as the Source in the spec file; then they put in a comment stating:

The source of this package was pulled from upstreams' vcs.  Use the following
commands to generate the tarball:
- git clone
- git submodule init
- git submodule update 

This approach is the best that I've found.  Any other suggestions?

Thanks much!