=== modified file 'backends/packaging-apt-dpkg.py'
--- backends/packaging-apt-dpkg.py	2016-06-19 20:17:12 +0000
+++ backends/packaging-apt-dpkg.py	2016-08-05 08:59:53 +0000
@@ -563,6 +563,7 @@
         if sandbox:
             f = tempfile.NamedTemporaryFile()
             f.write(('''Dir "%s";
+Dir::State::Status "/var/lib/dpkg/status";
 Debug::NoLocking "true";
  ''' % sandbox).encode())
             f.flush()