Therer is a bug in the 'skip' decision when exporting a repository
(`docker save repo`)
Only the layers of the first image are included in the archive (the
layers of the next images are missing)
Signed-off-by: Anthony Baire <Anthony.Baire@irisa.fr>
Upstream-commit: b37fdc5dd1db196209ebb860c88a37d67bb2cf98
Component: engine