On the fsfs-format7 branch:  keep internal and external state in sync
(will be needed for debugging purposes shortly)

* subversion/libsvn_fs_fs/pack.c
  (pack_shard): update ffd state immediately after packing a shard

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/fsfs-format7@1445056 13f79535-47bb-0310-9956-ffa450edef68