repeated run of pkgng empties out {digests,packagesite}.txz.

gistfile1.txt

ipanic:/tmp/testrepo$ ls -l
total 1
-rw-r--r--  1 kouk  wheel  1689644 Aug  8 16:10 pkg-1.1.4_1.txz
ipanic:/tmp/testrepo$ pkg repo .
Generating repository catalog in .: done!
ipanic:/tmp/testrepo$ ls -l
total 1669
-rw-r--r--  1 kouk  wheel      260 Aug  8 16:10 digests.txz
-rw-r--r--  1 kouk  wheel      600 Aug  8 16:10 packagesite.txz
-rw-r--r--  1 kouk  wheel  1689644 Aug  8 16:10 pkg-1.1.4_1.txz
-rw-r--r--  1 kouk  wheel     1424 Aug  8 16:10 repo.txz
ipanic:/tmp/testrepo$ pkg repo .
Generating repository catalog in .: done!
ipanic:/tmp/testrepo$ ls -l
total 1672
-rw-r--r--  1 kouk  wheel      180 Aug  8 16:10 digests.txz
-rw-r--r--  1 kouk  wheel      192 Aug  8 16:10 packagesite.txz
-rw-r--r--  1 kouk  wheel  1689644 Aug  8 16:10 pkg-1.1.4_1.txz
-rw-r--r--  1 kouk  wheel     1424 Aug  8 16:10 repo.txz
ipanic:/tmp/testrepo$ tar -tvf digests.txz
-rw-r--r--  0 root   wheel       0 Aug  8 16:10 digests
ipanic:/tmp/testrepo$ rm digests.txz packagesite.txz  repo.txz 
ipanic:/tmp/testrepo$ pkg repo .
Generating repository catalog in .: done!
ipanic:/tmp/testrepo$ tar -tvf digests.txz
-rw-r--r--  0 root   wheel      84 Aug  8 16:11 digests
ipanic:/tmp/testrepo$ ls -l
total 1672
-rw-r--r--  1 kouk  wheel      260 Aug  8 16:11 digests.txz
-rw-r--r--  1 kouk  wheel      600 Aug  8 16:11 packagesite.txz
-rw-r--r--  1 kouk  wheel  1689644 Aug  8 16:10 pkg-1.1.4_1.txz
-rw-r--r--  1 kouk  wheel     1424 Aug  8 16:11 repo.txz
ipanic:/tmp/testrepo$