Don't do forward deltification on regions of a repository that don't support it, namely, pre-1.6 portions of a repository which has been upgraded.
Don't do forward deltification on regions of a repository that don't support
it, namely, pre-1.6 portions of a repository which has been upgraded.

* subversion/libsvn_fs_base/tree.c
  (deltify_mutable): Determine if the revision we are looking at is older than
    the upgrade, and optionally apply our earlier deltification process.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion