The debian/ directory for this package is maintained in bzr.  There are two
primary branches, kept by each maintainer:

http://www.hezmatt.org/~mpalmer/bzr/puppet.debian (mpalmer)
http://repo.spacepants.org/puppet/puppet.debian (jaq)

Typically all the changes will be in one (or both) of these branches.  They
merge from each other on a regular basis, and the canonical version for a
release just depends on who actually made the upload.